viewed from the north star, does the earth rotate clockwise or counter-clockwise?
Viewed from the North Star (Polaris), the Earth rotates counter-clockwise.
When observing the motion of the Earth from the North Star, it appears that the Earth rotates in a counter-clockwise direction. This is because the Earth rotates on its axis from west to east, also known as eastward or prograde rotation.
The North Star, or Polaris, is located very close to the North Celestial Pole, which is the point in the sky directly above the Earth's North Pole. Due to the Earth's rotation, the stars, including Polaris, appear to move in circular paths around the North Celestial Pole.
If we observe the rotation from the perspective of the North Star, the Earth's rotation appears to be counter-clockwise. This is consistent with the general understanding of the Earth's rotation as viewed from different reference points in the night sky.
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where is the north pole on the flat map explorer? what is its shape?
On global map, the north pole is located at 90°N and 0°W but appears as single dot on flat map because globe is a sphere.
Where is north pole located on flat map?The north pole is situated in middle of the Arctic Ocean and appears as a single dot on a flat map due to spherical shape of the Earth.
The north pole is a point where all meridians converge and characterized by a polar climate and the presence of sea ice.
While the flat map can provide basic information about the north pole's location, it cannot capture true shape and complexity of the region. Therefore, the north pole is located at 90°N and 0°W on the global map.
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The Texas Hill Country, located in central Texas, is home to the Edwards Plateau ecoregion and Llano Uplift ecoregion. Since the Edwards Plateau is composed of large amounts of limestone rock formations with a vast underground cave system. What is likely the cause of the underground cave system?
The Concho, Tom Green, Irion, Sterling, Glasscock, Reagan, and Irion counties, as well as a different area to the north in the Coke, Taylor, and Nolan counties, are all included in the Edwards Plateau Ecological Region of Texas, which is located in the southwest of Northcentral Texas.
The Edwards Plateau is one of Texas' best grazing areas because of its unique physical characteristics, particularly its lack of deep soils appropriate for farming. Cattle, sheep, and goat farming are significant national industries.
The overall area of the Texas Hill Country, which is bordered by Austin to the north and San Antonio to the south but without formal limits, extends across the undulating Edwards Plateau.
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why do people in mountain areas in the southern hemisphere build their houses facing northwards
People in mountain areas in the southern hemisphere often build their houses facing northward because it maximizes exposure to the sun, which provides warmth and natural light.
This is because the southern hemisphere is tilted away from the sun, so the northern side receives more direct sunlight. By building their homes facing north, residents can take advantage of passive solar heating. Passive solar heating is a design technique that captures and utilizes the sun's energy for heating and lighting purposes, without the use of mechanical or electrical systems. The idea is to maximize the amount of solar radiation entering the home during the winter months when the sun is low in the sky.
Additionally, the northern side of a mountain is often less exposed to strong winds and cold temperatures, which can make it a more comfortable and sheltered location for building. By facing northwards, residents can also enjoy scenic views of the surrounding landscape and take advantage of natural ventilation.
Overall, building homes facing northward is a practical and energy-efficient design strategy for mountain areas in the southern hemisphere. It takes advantage of the natural light.
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the i = pat formula says that our environmental impacts (i) are the product of
The "I = PAT" formula is an equation commonly used in environmental studies to describe the environmental impact (I) resulting from human activities. The formula suggests that environmental impact is the product of three factors: population (P), affluence (A), and technology (T).
Here's a breakdown of each factor:
Population (P): This refers to the size of the human population. The more people there are, the greater the demand for resources and the potential environmental impact.
Affluence (A): Affluence represents the level of consumption and the economic well-being of a population. It takes into account factors such as income, consumption patterns, and lifestyle choices. Higher levels of affluence often lead to increased consumption and resource usage, resulting in a larger environmental impact.
Technology (T): Technology refers to the efficiency and environmental impact of the technologies used in resource extraction, production, and consumption. Technological advancements can either mitigate or exacerbate environmental impacts, depending on factors such as energy efficiency, waste management, and pollution control measures.
By multiplying these three factors together, the formula suggests that the environmental impact (I) is a result of the interactions between population, affluence, and technology.
It's important to note that the I = PAT formula is a simplification of a complex relationship and does not capture all aspects of environmental impact. Nevertheless, it serves as a useful framework to understand the general drivers of environmental change.
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On a surface weather map, where isobars are closely spaced winds are likely to be relatively ______. a. weak or calm. b. strong.
On a surface weather map, where isobars are closely spaced winds are likely to be relatively strong.
The spacing of isobars on a surface weather map is an important indicator of the strength and direction of winds. Isobars that are closely spaced together indicate a large change in atmospheric pressure over a short distance, which is referred to as a "steep pressure gradient."
In areas where the pressure gradient is steep, the atmosphere is in a state of imbalance and air will flow from high pressure to low pressure to restore equilibrium. The greater the difference in pressure between two points, the stronger the wind will be. Therefore, when isobars are closely spaced together on a surface weather map, it indicates a strong pressure gradient and hence strong winds.
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a dark gray cloud that blankets the sky and often generates precipitation is called ________.
A dark gray cloud that blankets the sky and often generates precipitation is called a nimbostratus cloud.
These clouds are typically low-lying and have a flat, featureless appearance. Nimbostratus clouds form when warm, moist air is forced to rise and cool, causing the water vapor to condense into tiny water droplets or ice crystals. As these droplets or crystals grow and become more numerous, they can eventually coalesce into larger drops that fall as rain or snow. Nimbostratus clouds can produce long periods of steady precipitation, and they often form ahead of a warm or cold front.
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what is the main control on whether a planet or moon has active tectonics and volcanism?
The main control on whether a planet or moon has active tectonics and volcanism is its internal heat. Several factors contribute to the generation and retention of internal heat, which ultimately determines the geological activity of a celestial body.
The following are the key controls:
Radiogenic heating: This is the heat produced by the radioactive decay of isotopes within a planet or moon's core and mantle. Radioactive elements, such as uranium, thorium, and potassium, decay over time, releasing heat in the process. The amount of radiogenic heating depends on the abundance of these elements and their isotopes.
Residual heat from planetary formation: Planets and moons retain some of the heat generated during their formation. The collisions and accretion processes that lead to their creation result in significant energy release, which can contribute to their internal heat.
Tidal heating: This mechanism is particularly relevant for moons orbiting larger planets or moons. Gravitational interactions between the celestial body and its parent or neighboring objects can cause tidal forces, generating heat through friction. This heat can drive tectonic and volcanic activity. Jupiter's moon Io, for example, experiences intense tidal heating due to its interaction with Jupiter and other moons, resulting in frequent volcanic eruptions.
Convection and heat transport: Convection within a planet or moon's interior plays a crucial role in redistributing heat. When hotter material rises and cooler material sinks, it drives a convective cycle that facilitates the transport of heat from the interior to the surface. This convective motion can drive plate tectonics and provide the energy required for volcanic activity.
It is important to note that the specific combination and interplay of these factors vary among celestial bodies. For example, Earth's active tectonics and volcanism are primarily driven by a combination of radiogenic heating, residual heat, and convective processes. On the other hand, the Moon, which lacks significant internal heat sources, has largely dormant tectonics and volcanism, although it exhibits ancient volcanic features from its earlier history.
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the feature formed when a river dumps its sediment near its mouth is called a:
The feature formed when a river dumps its sediment near its mouth is called a delta.
Deltas are triangular or fan-shaped accumulations of sediment formed as rivers discharge their water and sediment into larger bodies of water, such as oceans or lakes. As the river enters the larger body of water, its velocity slows down, causing it to deposit the sediment it has carried along. Over time, this sediment builds up and creates a landform that is often shaped like a delta. Deltas can be home to unique ecosystems and are important for wildlife habitats, fishing industries, and agriculture.
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in 1800, about 3% of the world's population lived in cities. today, that proportion is:
Answer:
Today's proportion is 54 %
Today, the proportion of the world's population living in cities has significantly increased from 3% in 1800.
According to the United Nations, as of 2021, approximately 56% of the global population lives in urban areas, which is over half of the world's population. This trend is expected to continue, and by 2050, it is projected that 68% of the world's population will be living in cities.
This shift towards urbanization has been fueled by various factors such as economic opportunities, better access to education and healthcare, and the attraction of modern amenities.
The needs of the urban poor and other vulnerable groups for housing, education, health care, decent work, and a safe environment must be prioritised in urban growth management policies in order to ensure that the advantages of urbanisation are equally shared and inclusive.
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True or false: a cooling air mass aloft sinks and compresses, becoming denser and warmer as it sinks.
Answer:
True
Explanation:
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Cartographers solve the problem of showing the spherical earth on a flat piece of paper by using: a) lines of attitude b) projections c) globes instead of flat maps d) degrees, minutes and seconds
Cartographers solve the problem of showing the spherical earth on a flat piece of paper by using projections. A projection is a systematic method of representing the curved surface of the earth onto a flat map.
This involves mathematically transforming the three-dimensional surface of the earth onto a two-dimensional surface. There are several types of projections, such as cylindrical, conic, and azimuthal, each with its own advantages and disadvantages. Some projections preserve shape, others preserve area, and some preserve distance.
Cartographers choose the projection based on the purpose of the map and the area of the world being represented. They use lines of latitude and longitude to create a grid system on the map, with degrees, minutes, and seconds used to measure distance.
While globes are three-dimensional representations of the earth and provide a more accurate representation of the earth's surface, they are not as practical as flat maps for everyday use.
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Which of the following constitutes a prediction rather than a forecast for a natural event? A) The tsunami from today's massive earthquake near Alaska will arrive in Hilo, Hawaii at 2 PM. B) Landslides are expected in the Tacoma, WA area throughout the weekend. C) Tremors from an earthquake may cause damage to poorly built structures. D) There is a 50% chance of thunderstorms in the Seattle region on Saturday. E) Four to five inches of rain may fall with the Category 2 storm off of the coast of Alabama.
Option A) The tsunami from today's massive earthquake near Alaska will arrive in Hilo, Hawaii at 2 PM.
Option A constitutes a prediction rather than a forecast for a natural event. A prediction involves providing a specific statement about a future event, such as the arrival time of a tsunami in this case. It is based on the current knowledge and understanding of the event and its expected consequences.
In contrast, a forecast typically provides a range of possibilities or probabilities regarding future weather or natural events, rather than a specific prediction. Options B, C, D, and E provide forecasts or expectations of certain events happening without specifying exact timings or outcomes, which aligns with the characteristics of a forecast.
Therefore, option A stands out as a prediction because it provides a precise statement about the arrival time of the tsunami in Hilo, Hawaii.
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Which of the following terms are types of seismic waves? CHOOSE ALL THAT APPLY. A. secondary waves B. tidal waves C. surface waves D. primary waves E. tsunami waves
The following terms are types of seismic waves: A. secondary waves, C. surface waves, and D. primary waves.
Seismic waves are waves of energy that travel through the Earth's interior during an earthquake. Primary waves (P-waves) are the fastest seismic waves and can travel through solid, liquid, and gas. Secondary waves (S-waves) are slower than P-waves and can only travel through solid materials. Both P-waves and S-waves are known as body waves because they propagate through the body of the Earth.
Surface waves, on the other hand, are slower than body waves and travel along the Earth's surface, causing the most damage during an earthquake. Tidal waves and tsunami waves, mentioned in options B and E, respectively, are not types of seismic waves but refer to large ocean waves caused by different phenomena.
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Which of the following correctly matches the tectonic setting of a mountain belt with an example?
a. subduction zone â East Africa
b. continental collision â Tibetan Plateau
c.mantle upwelling â Andes Mountains
Option (b) is the correct match as it accurately describes the tectonic setting of the Tibetan Plateau.
Continental collision – Tibetan Plateau is the correct match with the tectonic setting of a mountain belt
East Africa is located along a divergent boundary where the African Plate and the Arabian Plate are moving away from each other. The formation of mountains in this region is not associated with subduction.
The Tibetan Plateau was formed due to the collision of the Indian Plate with the Eurasian Plate. This is an example of a continental collision, where two continental plates collide and form mountain belts.
The Andes Mountains were formed due to the subduction of the Nazca Plate beneath the South American Plate. This is an example of a mountain belt formed at a subduction zone.
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A cloud fragment too small to collapse into a main sequence star becomes a:
Select one:
A. T Tauri object.
B. planet of another star.
C. brown dwarf.
D. white dwarf.
E. pulsar.
A cloud fragment that is too small to collapse into a main sequence star becomes a brown dwarf.
Brown dwarfs are objects that are more massive than planets but not massive enough to ignite nuclear fusion in their cores and become main sequence stars. They are often referred to as failed stars because they are too small to sustain fusion reactions that generate the heat and energy needed to shine brightly like a star. However, they are still considered important objects in the study of planetary formation and evolution because they are thought to share many of the same characteristics as gas giant planets. It's worth noting that a cloud fragment that is too small to become a brown dwarf could potentially form a planet of another star if it is gravitationally captured by a larger star in its vicinity.
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Which of the following would NOT be a reason why land heats faster than water?
Group of answer choices
A. the presence of a subtropical high
B. lower specific heat
C. less transmissivity
D. less evaporation
The presence of a subtropical high would not be a reason why land heats faster than water.
Land typically heats up faster than water due to a number of factors, including lower specific heat, less transmissivity, and less evaporation. Specific heat is a measure of how much energy is required to raise the temperature of a substance, and land has a lower specific heat than water, meaning it requires less energy to heat up. Transmissivity refers to the ability of a substance to transmit heat, and water has a higher transmissivity than land, meaning it can distribute heat more efficiently. Finally, water is able to evaporate, which helps to cool the surface and limit temperature increases.
The presence of a subtropical high is not a reason why land heats up faster than water. A subtropical high is an area of high pressure that typically forms over the subtropics, and it can influence weather patterns in a variety of ways. However, it does not directly impact the rate at which land and water heat up. Instead, the factors mentioned earlier, such as specific heat, transmissivity, and evaporation, are the primary reasons why land heats up faster than water.
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Which of the following is a correct statement about the MacArthur/Wilson Island Biogeography Model?
A. Islands closer to the mainland have higher extinction rates. B. Competitive exclusion is less likely on an island that has large numbers of species. C. The more species that inhabit an island, the lower the extinction rate.
D. As the number of species on an island increases the emigration rate decreases E. Small Islands receive few new immigrant species.
The MacArthur/Wilson Island Biogeography Model is: E. Small Islands receive few new immigrant species.
According to the MacArthur/Wilson Island Biogeography Model, small islands have limited resources and habitat availability. As a result, they receive fewer new immigrant species compared to larger islands or mainland areas. This is because smaller islands have lower colonization rates due to their smaller size and isolation.
The MacArthur/Wilson Island Biogeography Model, also known as the Equilibrium Theory of Island Biogeography, was proposed by ecologists Robert MacArthur and Edward O. Wilson in the 1960s. The model seeks to explain the distribution and diversity of species on islands.
According to the model, there are two main factors that influence species richness on islands: immigration and extinction rates.
Immigration: The model suggests that islands closer to the mainland are more likely to receive immigrant species. This is because closer proximity allows for easier colonization of new species from the mainland. Therefore, larger islands or those nearer to the mainland tend to have higher immigration rates.
Extinction: The model proposes that smaller islands have higher extinction rates. This is because smaller islands typically have limited resources and smaller populations, making them more susceptible to the loss of species due to environmental disturbances, competition, or other factors.
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summer afternoon thundershowers in the southeastern united states are more than likely a result of
Summer afternoon thundershowers in the southeastern United States are more than likely a result of convective activity due to high temperatures and high humidity levels.
During the summer, the sun heats up the land and air, causing warm, moist air to rise. As the warm air rises, it cools and condenses, forming cumulus clouds. If the atmosphere is unstable enough, these clouds can continue to grow vertically, leading to the formation of thunderstorms. In the southeastern United States, the warm, humid air from the Gulf of Mexico and the Atlantic Ocean can provide the necessary moisture for these thunderstorms. Additionally, the region is located in the "thunderstorm alley," where warm, moist air from the Gulf of Mexico collides with cooler air from the north and west, creating ideal conditions for thunderstorm development.
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the two geographical areas in which civilizations first arose in the near east were located
The two geographical areas in which civilizations first arose in the Near East were the Tigris-Euphrates river system and the Nile river valley.
These regions were located in what is now modern-day Iraq and Egypt respectively. The Tigris-Euphrates river system was home to the ancient civilizations of Sumer, Akkad, Assyria, and Babylon. These civilizations developed advanced systems of agriculture, writing, and law, and left behind impressive architectural achievements such as ziggurats and temples. The Nile river valley was home to the ancient civilization of Egypt, which also developed a complex system of agriculture, writing, and religion. The Nile provided the Egyptians with fertile land for farming, as well as transportation and trade opportunities. Both of these geographical areas were important centers of early human development and helped to shape the course of human history.
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cm storm stryker - white full tower gaming computer case with handle and external 2.5" drive dock
The CM Storm Stryker is a white full tower gaming computer case with a handle and an external 2.5" drive dock.
The CM Storm Stryker is a high-performance computer case specifically designed for gaming enthusiasts. It features a full tower form factor, providing ample space for powerful hardware components and efficient cooling systems. The case stands out with its striking white color, giving it a sleek and modern appearance.
One notable feature of the CM Storm Stryker is the built-in handle, allowing for easy transportation and portability, which can be particularly useful for gamers who frequently attend LAN parties or tournaments. Additionally, the case comes equipped with an external 2.5" drive dock, providing convenient access and quick connectivity for 2.5" hard drives or solid-state drives.
This feature allows for seamless data transfer and easy swapping of storage devices. Overall, the CM Storm Stryker offers a combination of functionality, style, and convenience, catering to the needs of avid gamers.
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What term describes the sizes, shapes, and arrangements of mineral grains in an igneous rock?
Silica content
Texture
Bowen's reaction series
Mineral content
The term that describes the sizes, shapes, and arrangements of mineral grains in an igneous rock is "texture".
Texture is one of the important characteristics used to identify and classify igneous rocks. It refers to the size, shape, and arrangement of mineral grains or crystals that make up the rock. Igneous rocks can have various textures, ranging from fine-grained to coarse-grained, glassy to porphyritic, and vesicular to aphanitic.
The texture of an igneous rock is determined by its cooling history, which in turn is influenced by the rate of cooling and the location of the rock's formation within the Earth's crust or mantle. The texture of an igneous rock can provide important clues about its formation and history, as well as its physical and chemical properties.
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where in georgia are they most likely to find remnants of the missions? responses a okefenokee swampokefenokee swamp b the barrier islandsthe barrier islands c the piedmont regionthe piedmont region d along the chattahoochee river
Remnants of the missions in Georgia are most likely to be found in the piedmont region. The piedmont region covers a large portion of the state, including cities like Atlanta and Athens.
This area is where most of the early Spanish missions were established in the late 16th century. The missions were built to convert the native tribes to Christianity and to establish Spanish control in the region. The most well-known mission in the piedmont region is the Mission San Buenaventura de Guadalquini, which was established in 1577. Today, only a few remnants of the mission remain, including a cemetery and a church bell. The other options listed in the question, such as the Okefenokee Swamp, the barrier islands, and the Chattahoochee River, were not significant areas for the Spanish missions in Georgia.
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climates will change due to all of the following except: amount of particulates in the atmosphere from things like volcanic ash and fossil fuel sulfatesb.sunspot activity and change of earth's rotational axisc.fluctuations in amount of ghg temperatures in septembere.distribution of feedback loops such as warming temperatures leading to ice diminishing, leading to reduced albedo, causing temperatures to rise
Climates will change due to all of the following factors except d. Distribution of feedback loops such as warming temperatures leading to ice diminishing, leading to reduced albedo, causing temperatures to rise.
What causes climate change ?Particulates in the atmosphere, such as volcanic ash and emissions from fossil fuels, can impact climate by affecting solar radiation and atmospheric processes.
Sunspot activity and changes in the Earth's rotational axis can influence climate patterns and variations in solar radiation received by the Earth. GHGs, such as carbon dioxide and methane, play a significant role in climate change by trapping heat in the Earth's atmosphere.
Feedback loops, such as the reduction of ice due to warming temperatures leading to decreased albedo (reflectivity) and subsequent further temperature rise, can amplify climate change but not cause it.
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in arid regions, differential erosion tends to be best developed in areas of ________.
In arid regions, differential erosion tends to be best developed in areas of contrasting rock types with different resistance to weathering and erosion.
These contrasting rock types can be identified by differences in color, texture, mineral composition, and hardness. The harder and more resistant rock types erode at a slower rate than the softer and less resistant rock types. As a result, the softer rock types erode more quickly, leaving the harder rock types standing as ridges or cliffs. This creates a landscape with a variety of landforms, such as mesas, buttes, and pinnacles, that are characteristic of arid regions.
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impermeable layers such as clay that hinder or prevent water movement are called ________.
Impermeable layers such as clay that hinder or prevent water movement are called aquitards.
These layers act as barriers to water flow and can trap water in underground reservoirs, also known as aquifers. Aquitards are important in the management and protection of water resources as they help regulate the amount and movement of water within aquifers. Clay is one of the most common materials found in aquitards due to its low permeability, which makes it an effective barrier to water flow. However, the effectiveness of aquitards can be compromised by human activities such as drilling and excavation, which can create pathways for water to flow through otherwise impermeable layers. Overall, understanding the properties and behavior of impermeable layers such as aquitards is crucial for the sustainable management and protection of groundwater resources.
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how was the fossil record of ancient life used to support wegener’s hypothesis about pangaea?
The fossil record of ancient life was used to support Wegener's hypothesis about Pangaea by showing similar species distributed across different continents
Wegener proposed the theory of Pangaea, suggesting that the continents were once connected in a supercontinent and had since drifted apart. One of the pieces of evidence supporting his hypothesis was the fossil record. Wegener noted that identical or closely related plant and animal species were found on different continents that are now widely separated.
This observation suggested that the continents were once joined together and allowed for the migration and distribution of species across these landmasses. Fossils of ancient organisms like Mesosaurus and Glossopteris were particularly significant in supporting Wegener's ideas.
These fossils were found in South America, Africa, India, and Antarctica, implying that these regions were once connected. The presence of similar fossils on multiple continents provided compelling evidence for the existence of Pangaea and the concept of continental drift.
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The fossil record, including fossil species and examples like Glossopteris, provided strong evidence for Wegener's hypothesis about Pangaea. The widespread distribution of these fossils across separate continents supported the idea that these land masses were once united and have since moved apart.
Explanation:The fossil record played a significant role in supporting Alfred Wegener's hypothesis about Pangaea, an ancient supercontinent. For instance, several identical fossil species have been found on vastly separated continents, implying that these land masses were once united. This would be consistent with Wegener's idea of Pangaea.
One example includes the fossil of a fern-like plant named Glossopteris. This fossil has been found in South America, Africa, Madagascar, India and Antarctica, continents that today are widely separated. This discovery suggested that these continents were once part of a single landmass and have since drifted apart, supporting Wegener's concept of continental drift as part of his Pangaea hypothesis.
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You are given the coordinates 128 E longitude, 45 N latitude this is an example of a:
A. mathematical location B. placename on the grid system C. situation on the grid system D. mathematical grid interchange E. site-situation intersection
The correct option is A. It is important to note that coordinates are a mathematical location that needs to be expressed in terms of both longitude and latitude, as these two values are necessary to accurately describe a point on the Earth's surface.
The given coordinates, 128 E longitude and 45 N latitude, represent a situation on the grid system. Specifically, they indicate a location on the Earth's surface based on a mathematical grid system that uses lines of longitude and latitude to determine exact positions. Longitude refers to the east-west lines that run from the North Pole to the South Pole, while latitude refers to the north-south lines that run parallel to the equator. Together, these lines form a grid system that can be used to pinpoint any location on the Earth's surface. Therefore, the answer is option C. It is important to note that coordinates are a mathematical location that needs to be expressed in terms of both longitude and latitude, as these two values are necessary to accurately describe a point on the Earth's surface.
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based on current evidence and models, visible, luminous matter (such as the stars within galaxies) amounts to approximately what percentage of the total mass and energy of the universe? based on current evidence and models, visible, luminous matter (such as the stars within galaxies) amounts to approximately what percentage of the total mass and energy of the universe? 10 percent 25 percent less than 1 percent 50 percent
Based on current evidence and models, visible, luminous matter (such as stars within galaxies) accounts for less than 1 percent of the total mass and energy of the universe.
Dark matter and dark energy, which are not directly observable but have been inferred through their gravitational effects on visible matter, make up the majority of the universe. Dark energy is thought to make up roughly 68 percent of the universe while dark matter is thought to make up about 27 percent. The universe is primarily made up of dark matter and dark energy, with visible matter making up a very small portion of the total. Based on recent cosmological observations and theoretical models, it is estimated that less than 1% of the universe's total mass and energy is made up of visible, luminous matter.
Multiple lines of evidence have led to this conclusion, including investigations into galaxy rotation curves, gravitational lensing, cosmic microwave background radiation and the large scale distribution of matter in the universe.
The rotational velocities of galaxies reveal that there is more mass present than can be explained by visible matter. This suggests the existence of dark matter which has gravitational effects on visible matter but does not emit or interact with light.
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Which of the following is not included in the classes of volcanoes classified on the basis of the frequency of their eruption?
A) Active Volcanoes
B) Dormant Volcanoes
C) Extinct Volcanoes
D) Composite Volcanoes
D) Composite Volcanoes is not included in the classes of volcanoes classified on the basis of the frequency of their eruption.
Active volcanoes are those that have erupted recently and are likely to erupt again. Dormant volcanoes are those that are not currently erupting but have erupted in the recent past and are expected to erupt again.
Extinct volcanoes are those that have not erupted in recorded history and are unlikely to erupt again. These classifications are based on the frequency of their eruption and the likelihood of future eruptions.
Composite volcanoes, also known as stratovolcanoes, are characterized by their steep slopes, symmetrical cone shape, and explosive eruptions. They are composed of layers of hardened ash, lava, and other volcanic materials. While they can be classified as active or dormant based on their recent activity, they do not fall under the category of frequency of eruption.
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