Converging plate boundaries occur at subduction zones.While some plates collide and build mountains by stacking rocks to release pressure.
This most commonly occurs when one of the plates at the convergent boundary is an oceanic plate and the other is a continental plate the plate,the denser of the two,is pushed down where it melts as it approaches the mantle Magma produced through plate melting often rises and can reach the surface through the formation of volcanoes.Subduction occurs at some convergent plate boundaries. Subduction forces one of the tectonic plates down into the Earth's mantleBasaltic oceanic crust contains hydrated minerals such as amphiboles,some of which formed by hydrothermal alteration as seawater seeped through hot, fractured, young oceanic crust on the mid-oceanic ridge.As the oceanic crust sinks further into the mantle,the pressure increases,the temperature of the oceanic crustal rocks rises more slowly because the rocks are poor conductors of heat.At depths of about 100 km below the surface,the pressure is great enough for hydrated minerals to undergo metamorphism.
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In which order would these rocks and minerals be found in the layers of Earth from the crust to the lower mantle
The crust, mantle, and core are the three layers that make up the earth. Minerals and solid rocks make up the crust. The mantle, which lies below the crust, is composed primarily of solid rocks and minerals with some pliable regions of semi-solid magma. There is a heated, dense metal core in the center of the Earth.
What is the rock?Rock is a naturally occurring mineral aggregate that is cohesive and composed of one or more minerals. These aggregates often take the shape of recognizable and mappable volumes and are the fundamental building block of the solid Earth. Typically, there are three major classes of rocks.
Igneous, sedimentary, and metamorphic rocks are the three fundamental categories of rock. Igneous rocks, which develop from molten material during volcanic eruptions, are extremely prevalent in the Earth's crust. They consist of far-underground magma that freezes to form rocks like granite in addition to the lava that volcanoes erupt.
More than 2000 minerals make up the earth's crust, yet just six of them are most prevalent and contribute the most. Feldspar, quartz, pyroxenes, amphiboles, mica, and olivine are the six most common minerals.
Therefore, solid rocks and minerals with some pliable regions of semi-solid magma.
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Order the steps involved in fractional crystallization. Items (4 items) (Drag and drop into the appropriate area) Magma. after entering through the bottom of the magma chamber, reaches the top of the chamber where temperatures are lower. The magma shifts toward a more intermediate composition. Mineral crystals, having a higher density than liquid magma, sink to the bottom of the magma chamber. Magnesium- and iron-rich minerals begin to crystallize.
The steps involved in fractional crystallization.
1. Magma, after entering through the bottom of the magma chamber, reaches the top of the chamber where temperatures are lower.
2. Magnesium-and iron-rich minerals begin to crystallize
3. Mineral crystals, having a higher density than liquid magma, sink to the bottom of the magma chamber
4. The magma shifts toward a more intermediate composition.
The process of separating two or more crystalline solids based on how differently they dissolve in the same solvent is known as fractional crystallisation. The concentration of the silica that makes up the magma increases its viscosity.
The process of separating liquid from crystals is referred to as "fractional crystallisation." The liquid that remains after this happens is thought to be new magma. There are a number of methods that can be used to separate the crystals from the magma. The compositions of many minerals are denser than those of the liquids from which they crystallize.
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Are subduction zones divergent plate boundaries?
A subduction zone is not a true type of diverging plate boundary; it is a subduction zone that is a type of convergent plate boundary.
Definition of a Subduction ZoneSubduction zones are plate boundaries in the form of plate collisions where one plate sinks into the bowels of the earth and the other plate lifts to the surface. When two plates collide, the denser plate moves under the other and into the mantle.
Subduction zones occur at convergent plate boundaries where two or more plates meet and subduction occurs between plates to produce new products. Subduction zones can occur either between two continental plates, two oceanic plates or between continental and oceanic plates.
Phenomena that occur in subduction zones as a result of convergent motion are generally troughs, volcanic ridges, and oceanic trenches. Any movement of the subducting plate can generate natural hazards, such as earthquakes, tsunamis, volcanoes and landslides.
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archaeological evidence of ancient peoples included the study of the written word?
Yes, archaeological evidence of ancient peoples includes the study of the written word. In fact, the study of ancient writing is a crucial aspect of archaeology.
Through the examination of written documents, archaeologists can gain insight into the beliefs, customs, and daily lives of ancient peoples. Written evidence can include inscriptions on stone, clay tablets, papyrus, and other materials.
These written sources can provide valuable information about ancient societies, including their religious practices, economic systems, and political structures. By studying the written word, archaeologists can gain a deeper understanding of ancient cultures and how they evolved over time.
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kilimanjaro is the highest mountain in which continent?
the area of the globe (latitude) that is characterized by falling air masses and little precipitation is labeled number:
The area of the globe (latitude) that is characterized by falling air masses and little precipitation is called number six (6)
What is latitude about?It is the angular distance between a point on the earth's surface and the Ecudor. It is measured from 0° at the Equator to 90° towards the North Pole and towards the South Pole. More precisely, it is the angle formed from the center of the Earth to the Equator and a place on the Earth's surface. All points located on the same parallel have the same latitude.
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Which of the following planets has a moon that rises in the west?
which of the following correctly identifies both a nonpoint source and a point source of pollution? nonpoint source pollution point source pollution (a) industrial smokestack waste discharge pipe (b) agricultural runoff urban runoff (c) leaking sanitary landfill pesticide spraying (d) urban runoff city bus exhaust
The correct answer is: (b) Agricultural runoff - nonpoint source pollution (c) Leaking sanitary landfill - point source pollution
Nonpoint source pollution refers to pollution that comes from diffuse sources, such as agricultural runoff or urban runoff. These sources can be difficult to pinpoint, and the pollution can come from a wide area.
Point source pollution, on the other hand, comes from a single, identifiable source, such as a factory or a leaking landfill. The pollution can be traced back to a specific location.
In the given options, agricultural runoff is an example of nonpoint source pollution because it comes from a wide area and is difficult to pinpoint to a specific source. Leaking sanitary landfill, on the other hand, is an example of point source pollution because the pollution is coming from a specific location, the landfill, and can be traced back to that source. The other options are not correctly matched because they are either both point source pollution or both nonpoint source pollution.
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Choose the correct statement describing, what will you see if you look at them with a telescope that has an angular resolution of 0.5 arcsecond.
a. Two distinct stars.
b. One point of light that is the blurred image of both stars.
c. Nothing at all.
(B)One point of light that is the blurred image of both stars at them with a telescope that has an angular resolution of 0.5 arcsecond.
The angular resolution is proportional to the ratio of the wavelength, l, of the radiation divided by the telescope diameter:q=l/D.The highest angular resolutions for telescopes can be achieved by arrays of telescopes called astronomical interferometers.These instruments can achieve angular resolutions of 0.001 arcsecond at optical wavelengths,and much higher resolutions at x-ray wavelengths.Not only could you damage your eye, but you can also damage the lenses in the telescope.There is a particular color of red called H-alpha,coming from hydrogen atoms that is good for viewing the Sun's chromosphere,the part of the Sun directly above the surface,and that shows the best solar activity.The angular resolving power or resolution of a telescope is the smallest angle between close objects that can be seen clearly to be separate. Resolution is limited by the wave nature of light.
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What does the change in the period with respect to the eccentricity tell you about the dependence on the period on the eccentricity?A. The period depends inversely on the eccentricity.B. The period depends directly on the eccentricity.C. The period does not depend on the eccentricity.D. The graph does not indicate anything about the dependence.
The change in the period with respect to the eccentricity tells you about the dependence on the period on the eccentricity as B) the period depends directly on eccentricity.
The period of an orbit is the time it takes for one complete revolution around the central body. Eccentricity is a measure of how much an orbit deviates from a perfect circle, with values ranging from 0 (perfect circle) to 1 (parabolic orbit).
Kepler's laws of planetary motion state that the period of an orbit depends on the semi-major axis and the eccentricity of the orbit. In particular, for a fixed semi-major axis, the period of an orbit increases as the eccentricity increases.
This can be seen from the fact that as the eccentricity increases, the object spends more time far away from the central body, and less time close to it. Therefore, the change in the period with respect to the eccentricity is directly proportional, indicating that the period depends directly on the eccentricity.
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Select the statement that best describes the concept of fossil succession Choose one: A. There is a definite relative order in which certain, but not all, fossil species occur within the layers of rock on Earth B. As you go up in stratigraphy, fossils are older. C. Fossils are randomly distributed throughout the rock record, and the succession through geologic time is irregular. D. There is a definite relative order in which each fossil species occurs within the layers of rock on Earth.
The concept of fossil succession refers to the idea that there is a definite relative order certain fossil species within the layers of rock on Earth.
This order is based on the principle that fossils found in deeper layers of rock are generally older than those found in more shallow layers. Therefore, as you move up through the layers of rock, you can observe a sequence of fossil species that reflects the evolution of life through time.It's important to note that not all fossil species are found in the rock record, and that the succession through geologic time is not always perfect or consistent. However, the overall pattern of fossil succession has been established through extensive study and observation of the rock record, and is a key tool for understanding the history of life on Earth.The relative order of fossils in the rock record is determined by a variety of factors, including the environment in which the organism lived, the time period in which it existed, and the particular conditions of fossilization that occurred. By studying these factors and observing the patterns of fossil succession, scientists can reconstruct the evolution of life on Earth and gain insights into the processes that have shaped the diversity of living organisms we see today.
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the process in which a denser plate is pushed beneath a less dense plate is called ____
The process in which a denser plate is pushed beneath a less dense plate is called subduction.
What is subduction?At convergent borders, the oceanic lithosphere and a portion of the continental lithosphere are pushed downward into the Earth's mantle through a geological process known as subduction. When the oceanic lithosphere of one tectonic plate collides with the less dense lithosphere of another plate, the oceanic lithosphere of the heavier plate dives beneath the less dense plate and sinks deeper into the mantle. The surface expression of this process is referred to as an arc-trench complex, and the region where this process takes place is referred to as a subduction zone.
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what is the azimuth of an object that is ten degrees south of east?
The azimuth is expressed in degrees, with 360 degrees in a complete circle and counting clockwise from north.
A circle of azimuth consists of 360 degrees.Ninety degrees corresponds to the east, 180 degrees to the south, 270 degrees to the west, and 360 degrees and 0 degrees to the north. An arc of the horizon measured between a fixed point such as true north and the vertical circle through the center of an object.The line is your azimuth. Now you need to determine the grid azimuth of that line the angle between the line and grid north. The terms azimuth and direction are interchangeable and memorize flashcards containing terms like A bright star is shining in the southern sky about ten degrees south of your zenith.
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How were the native people of cameroon treated during colonization?
Answer:
Overall, the treatment of the native people of Cameroon during the colonial period was characterized by exploitation, oppression, and cultural suppression. Despite this difficult history, the people of Cameroon have since achieved independence and are working to preserve their cultural heritage and build a more equitable and prosperous future for themselves and their descendants.
Explanation:
The native people of Cameroon were treated poorly during the colonial period. They were subjected to forced labor, land confiscation, and cultural suppression by the colonial authorities.
During the late 19th and early 20th centuries, the Germans, who were the first colonizers of Cameroon, implemented a system of forced labor in which indigenous people were required to work on European-owned plantations and perform other forms of forced labor without compensation. This system was particularly brutal, and many Cameroonians died as a result of the harsh working conditions and mistreatment.
In addition to forced labor, the colonial authorities also confiscated large portions of land from the indigenous people, leaving many of them landless and impoverished. This was particularly devastating for subsistence farmers, who relied on their land for their livelihood.
The colonizers also attempted to suppress the culture of the indigenous people, including their traditional beliefs and practices. They were encouraged to adopt European customs and values, and their own cultural heritage was often denigrated and marginalized.
the fine-grained foliated metamorphic rock formed from the metamorphism of shale or mudstone is called
The fine-grained foliated metamorphic rock formed from the metamorphism of shale or mudstone is called Phyllite.
A foliated metamorphic rock called phyllite is abundant in small sericite mica sheets. It exhibits gradations in metamorphism ranging from mica schist to slate. The hue ranges from black to greenish grey to grey to grey. Additionally, it might come from clayey tuffite and fine-grained tuffs.
Because of the high concentration of mica and chlorite, the phyllites have a fantastic fissile quality with tiny sheets exhibiting thin schistosity. The existence of mica flakes gives the schistosity surfaces a silvery lustre. Chlorite, fine-grained micas, and microcrystalline quartz are the main mineral components of phyllites.
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How tsunamis are generated?
Tsunami is generated when an earthquake, landslide, or volcano eruption occurs under the ocean and creates a series of large waves that travel across the ocean's surface.
Tsunamis are generated by a variety of natural events, most commonly by underwater earthquakes, but also by volcanic eruptions, landslides, and meteorite impacts. When an earthquake occurs under the ocean, it can create a series of large waves that travel across the ocean's surface.
The waves can be several meters high and travel at high speeds, sometimes reaching up to 800 kilometers per hour in deep water.
The earthquake's energy is transferred to the water and causes it to move in a circular motion. This circular motion creates a series of long waves that can travel thousands of kilometers across the ocean before reaching the shoreline. As the waves approach the shoreline and the ocean becomes shallower, the wave's energy is compressed, causing the wave to grow in height and impact the shoreline with devastating force.
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In 1996, the world trade organization ruled that the U. S. Environmental protection agency regulation calling for cleaner gasoline discriminated against foreign producers and violated WTO agreements. The EPA was forced to rewrite the rule to allow for dirtier gasoline. How did the revision most likely affect gas consumers in the United States?
The revision of the EPA's rule to allow for dirtier gasoline would likely have had a negative impact on gas consumers in the United States.
The original EPA rule required gasoline to contain lower levels of sulfur, benzene, and other harmful pollutants, which would have improved air quality and public health. The revised rule, which allowed for higher levels of these pollutants, would likely have resulted in increased air pollution and related health problems, such as respiratory issues.
In addition, the revision could have also potentially led to higher gasoline prices, as the increased levels of pollutants may have made it more difficult for refineries to produce the required cleaner gasoline. This, in turn, could have led to reduced competition in the market and increased prices for consumers.
Overall, the revision of the EPA's rule to allow for dirtier gasoline would likely have had negative consequences for gas consumers in the United States, both in terms of public health and potentially increased costs.
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dendochronology helps to determine past climate changes. what other sources help to determine past climates?
Ice cores, sediment cores, tree rings, and coral reefs are all sources that scientists use to determine past climates, providing information about changes in temperature, precipitation patterns, and atmospheric gases.
Determining past climates is crucial for understanding the natural variability of the Earth's climate system and the impact of human activities on it. In addition to dendrochronology, there are several other sources that scientists use to reconstruct past climates. One such source is ice cores, which provide a record of past temperature and atmospheric composition by analyzing the trapped gases and particles within the ice. Another source is sediment cores, which are extracted from lake and ocean bottoms and provide information on past temperatures and precipitation patterns through the analysis of the sediment layers and fossils. Coral reefs, which contain growth bands similar to tree rings, are also used to reconstruct past climate conditions. Finally, historical documents, such as ship logs and diaries, provide anecdotal evidence of past climate conditions, as do geological records of glacial advances and retreats. By using multiple sources to reconstruct past climates, scientists can gain a more comprehensive understanding of natural climate variability and the impact of human activities on the climate system.
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what does the torch on the statue of liberty represent?
The torch on the Statue of Liberty represents enlightenment and the path to liberty.
The Statue of Liberty is a symbol of freedom and democracy, and the torch she holds represents the guiding light of liberty shining out to the world. The statue was given to the United States as a gift from France in 1886, to celebrate the centennial of the American Revolution and to honor the close relationship between the two countries.
The statue's original name is "Liberty Enlightening the World," and it was designed to symbolize the ideas of liberty, democracy, and enlightenment. The statue's torch is held high as a symbol of hope and freedom, and its light has been interpreted as a beacon of welcome to immigrants and a symbol of America's values.
Over the years, the statue has become one of the most iconic symbols of the United States, and its torch is recognized around the world as a symbol of freedom, hope, and opportunity.
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Which edge of this map is north?
O top
Oright side
O bottom
O left side
Answer: The top edge of the map is typically considered north.
Explanation:
In traditional cartographic convention, the top edge of a map is usually considered north, while the bottom edge is south, the right edge is east, and the left edge is west. This convention helps to orient the reader and align the map with the geographical coordinates used in navigation.
It's worth noting that this convention is not universal and may vary depending on the context and the type of map. Some maps may have different orientations, such as upside-down or rotated, and may use different symbols or colors to indicate direction. Additionally, some maps may use different projections or scales, which can affect the representation of direction and distance.
So, in answer to the question, the top edge of the map is typically considered north.
Answer:
Explanation:
its the top
im sorry for confusing you about a map.
what theor in seismic explains activity of earth ?
The theory in seismology that explains the activity of the Earth is the theory of plate tectonics.
This theory describes the movement of the Earth's lithosphere, which is the outermost layer of the Earth, comprising the crust and the upper part of the mantle. The lithosphere is divided into several large plates, and the theory of plate tectonics describes how these plates move and interact with each other.
According to the theory of plate tectonics, the movement of the Earth's plates is driven by convection currents in the mantle. These convection currents are caused by the heat generated by the decay of radioactive elements in the Earth's core. As the mantle convects, it drags the overlying lithospheric plates along with it, causing them to move and interact with each other.
Earthquakes are one of the most notable effects of plate tectonics, and they occur when two plates move past each other or when one plate is pushed under another plate. The sudden release of energy causes the ground to shake, and this shaking is what we feel as an earthquake.
In summary, the theory of plate tectonics is a comprehensive model that explains the activity of the Earth, including earthquakes, volcanoes, and mountain building. It is based on the movement and interaction of the Earth's lithospheric plates, which are driven by convection currents in the mantle.
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How will the weather change in the future due to climate change?
Answer: The potential future effects of global climate change include more frequent wildfires, longer periods of drought in some regions, and an increase in the duration and intensity of tropical storms.
Explanation:
metamorphism can occur in the surrounding rock as an igneous pluton forms. which type of metamorphism is most likely to occur in the surrounding rock?
The type of metamorphism that is most likely to occur in the surrounding rock as an igneous pluton forms is contact metamorphism, also known as thermal metamorphism.
Contact metamorphism occurs when rocks come into contact with a high-temperature heat source, such as an igneous intrusion or magma. As the hot magma comes into contact with the surrounding rock, it causes the rock to heat up and undergo changes in mineralogy and texture due to the increased heat and pressure. The degree of metamorphism depends on the size of the pluton, the temperature of the magma, and the type of rock that is being metamorphosed.
The zone of contact metamorphism is typically limited to the immediate vicinity of the pluton, with the degree of metamorphism decreasing with distance from the heat source. In general, contact metamorphism produces rocks with a distinctive texture and mineral assemblage that are different from the original rock. For example, limestone may be transformed into marble, or shale may be transformed into hornfels.
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T/F. Geologists of the mid-twentieth century determined that the ocean floor was much older than the centers of continents.
False. The ocean floor is significantly younger than the centres of continents, according to geologists working in the middle of the twentieth century.
This finding, which showed that the ocean floor is constantly being replenished whereas the continents are considerably older and more stable, was made through the study of seafloor spreading and the formation of a new crust at mid-ocean ridges. This concept is referred to as plate tectonics, a fundamental geological theory that provides an explanation for many of the Earth's geological processes.
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how do lithospheric mantle and asthenosphere differ from each other?
Why did Antarctica’s climate change approximately 50 million years ago?
Answer:
There was a drop of carbon dioxide in the atmosphere resulting in a drop of temperature. I hope this helps!
Answer: there was a drop in carbon dioxide in the atmosphere of the Earth, resulting in a drop in temperatures that contributed to Antarctica's changing climate.
Explanation:
your welcome <3
If p q and q = r, which statement must be true?
A. s p
B. pr
OC. r= p
D. p=s
SEPTITE
Darvar
mo
REA
SL
The statement that would be true is that P = r
How to find the value of pA conditional logic statement is a statement that specifies conditions under which certain actions will be executed. It's a type of control flow statement that is used in programming to control the flow of a program based on certain conditions.
In the statement we have seen that p = q = r
Hence we can say that the value of p would be r as well
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what meteorological phenomenon causes a warm current of water to appear every three to seven years in the eastern pacific ocean, causing unusual weather conditions all over the world?
The term 'El Nio' is widely used to describe the periodic warming of sea surface temperature, which is typically concentrated in the central-east equatorial Pacific. El Nio occurs when sea temperatures in the tropical eastern Pacific rise by 0.5 degrees Celsius above the long-term average.
El Nio is the warm phase of the El Nio-Southern Oscillation (ENSO) and is associated with a band of warm ocean water developing in the central and east-central equatorial Pacific (roughly between the International Date Line and 120°W), including the area off the Pacific coast of South America.
The ENSO is the tropical central and eastern Pacific Ocean's cycle of warm and cold sea surface temperature (SST). El Nio is accompanied by high western Pacific air pressure and low eastern Pacific air pressure.
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where does the water involved in melting at subduction zones come from?
The water involved in melting at subduction zones comes from various sources. One of the most important sources is the hydration of minerals in the subducting oceanic plate.
The marine plate is composed of jewels that contain minerals that can hold water motes within their crystal-clear structures. As the plate descends into the hot mantle, these minerals release water due to dehumidification responses. The water also rises and mixes with the girding mantle material, lowering its melting point and leading to the conformation of magma.
Another water source in subduction zones is the oceanic sediments carried down with the subducting plate. These sediments contain organic matter, which can release water upon heating and pressurization, further contributing to the mantle's hydration and the magma's conformation. also, some water may be introduced into the mantle from the overlying plate through serpentinization, where peridotite jewels are altered to windy minerals in the presence of water.
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what is responsible for the mild climates found in western and northern europe?
The mild climates found in western and northern Europe are largely due to the influence of ocean currents,
Specifically the North Atlantic Drift (also known as the Gulf Stream).
This ocean current brings warm water from the tropics to the coasts of western and northern Europe, helping to regulate the climate and making it milder than it would be otherwise.
The prevailing westerly winds also help to distribute this warmth across the region. Additionally, the proximity of western and northern Europe to the Atlantic Ocean and the surrounding mountainous areas can help to moderate temperatures and create more varied weather patterns, further contributing to the mild climate.
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