Answer: Some limestones form by direct precipitation of calcium carbonate from marine or fresh water. Limestones formed this way are chemical sedimentary rocks.
Explanation:
which country has the largest share of its population over 65 years of age?
Japan currently has the largest share of its population over 65 years of age.
According to data from the United Nations, as of 2021, around 28% of Japan's population is aged 65 and above. This is significantly higher than in other countries, with the next highest being Greece with around 22% of its population over 65. Japan's rapidly aging population is a result of a combination of factors, including a low fertility rate and a high life expectancy.
The country has a long-standing tradition of valuing and caring for the elderly, which has contributed to the high life expectancy. However, the low fertility rate, which is partly a result of cultural and economic factors, has led to a decrease in the number of young people in the population. This has caused a demographic shift, resulting in a higher proportion of older people in the population.
Japan's aging population is a significant challenge for the country, as it will have implications for economic growth, social security, and the provision of healthcare and other services.
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which statement is correct about carbon dating and index fossils?(1 point) responses they are both used to determine the absolute ages of rocks and fossils. they are both used to determine the absolute ages of rocks and fossils. they are both used to determine the relative ages of rocks and fossils. they are both used to determine the relative ages of rocks and fossils. index fossils are used for absolute dating, but carbon dating is not. index fossils are used for absolute dating, but carbon dating is not. carbon dating is used for absolute dating, but index fossils are not.
The statement that is correct is "carbon dating is used for absolute dating, but index fossils are not."
Carbon dating is a method used to determine the absolute age of a fossil or other organic material. It is based on the principle that all living things absorb carbon, a radioactive isotope of carbon, during their lifetime. When an organism dies, it stops absorbing carbon, and the carbon-14 that was absorbed begins to decay at a known rate.
By measuring the amount of carbon-14 remaining in a sample, scientists can calculate how long ago the organism died. Index fossils, on the other hand, are used to determine the relative age of rocks and fossils. An index fossil is a fossil of a species that existed for a relatively short period of time and was widely distributed geographically.
Carbon dating and index fossils are both tools used by scientists to determine the age of rocks and fossils. However, they are used to determine different types of age, absolute and relative respectively. Because these fossils are found in many different rock layers, scientists can use them to determine the relative age of a rock layer. For example, if an index fossil is found in a rock layer, scientists know that the rock layer must be from the same time period as when that index fossil existed.
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stick charts are used to help people navigate the ocean, noting the ocean swell patterns, island placements, and so on. question 18 options: true false
The statement 'stick charts are used to help people navigate the ocean, noting the ocean swell patterns, island placements, and so on' is true.
Stick charts are a traditional tool used by Pacific Island navigators to help them find their way across the ocean.
By noting the patterns of the ocean swells, the placement of islands and other landmarks, stick charts enable navigators to chart their course and find their destination.
These traditional charts have been used for centuries and are still used today by those who practice the ancient art of navigating the ocean.
Stick charts are an ancient navigational tool used by ocean sailors for centuries.
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Undergroud rock salt is mined in wéstern NY ayate ti be usted as food addictive and yo melt ice on roads.What can these largo rock salt deposits tel scients about the geológic history of NY state
There had to have once been a body of water there—possibly even in prehistoric times.
What is Gypsum?
Gypsum is created when certain elements in a body of water come together and evaporate fast.
As an evaporite, gypsum crystallizes as water evaporates, which is how it gets its name. Gypsum is created when the appropriate minerals crystallize due to evaporation. Gypsum crystals called "desert roses" form with evaporation when the water table fluctuates in the case of these crystals, which are found in arid regions all over the world.
Gypsum can also develop genetically through oxidation. When oxidation of preexisting sediments results in the formation of gypsum and the replacement of other minerals in the sediments, a chemical process takes place.
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is the tropic of capricorn north or south of the equator
Answer:
south
Explanation:
glaciers erode sediment, and some of that sediment is deposited at the end of the glacier. what statement best describes how these deposits changed from 1999 to 2016?
Glaciers erode sediment, statement best describes how these deposits changed from 1999 to 2016.
As they go downhill, glaciers erode and move the rock. The sediment is then deposited as unsorted glacial till as the glaciers begin to melt or retreat, frequently in distinctive landforms like moraines and their accompanying sedimentary facies.
Erosion
Because of how frigid glacial habitats are, glacier erosion is more often physical than chemical. Among the erosional processes are:
Water freezing and expanding in cracks cause rocks to fracture.
Rocks gathered along the base of a flowing glacier from the valley floor
rocks being carried by flowing ice and rubbing up against one another or the glacial valley floor.
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A wetland provides a variety of services for an ecosystem, such as filtering pollutants from the water, allowing animals to lay eggs and reproduce, and producing fertile soils for plants. When humans build houses on wetland areas, they always
A wetland provides a variety of services for an ecosystem, such as filtering pollutants from the water, allowing animals to lay eggs and reproduce, and producing fertile soils for plants. When humans build houses on wetland areas, they always make changes that not might be reversible.
About WetlandsWetland are areas where the soil is saturated with water, either permanently (permanently) or seasonally. These areas are sometimes partially or completely inundated by shallow layers of water. Classified into these wetlands, among others, are swamps (including mangrove swamps), swamps, and peat. Water that inundates wetlands can be classified as fresh, brackish or salt water.
Wetlands are areas that have a high level of biodiversity compared to most ecosystems. On the wetlands grow various types of vegetation (plant communities), such as fresh water swamp forest, peat swamp forest, mangrove forest, swamp grass and others. The wildlife that inhabit the wetlands is no less diverse, starting from those that are typical of wetlands such as crocodiles, turtles, monitor lizards, snakes, various types of frogs, and various kinds of fish; up to hundreds of species of birds and mammals, including tigers and elephants.
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what number represents the latitude receiving the sun's vertical rays on the northern hemisphere autumnal equinox?
The number that represents the latitude receiving the sun's vertical rays on the northern hemisphere autumnal equinox is 0 degrees.
The autumnal equinox marks the point in the year when the sun is directly above the equator, resulting in equal amounts of daylight and darkness for all regions of the earth. This event typically occurs around September 22-23rd.
During the autumnal equinox, the sun's rays are vertical at the equator, which is defined as 0 degrees latitude. At this point, the sun is directly overhead, resulting in the shortest shadow for the observer and the highest solar radiation received.
As the observer moves away from the equator, towards the poles, the angle of incidence of the sun's rays becomes less vertical, and the shadows become longer. This means that the amount of solar radiation received decreases as the observer moves away from the equator.
This event is also known as the "equal night" because the night and day are of the same length everywhere on the Earth except the poles. The northern hemisphere autumnal equinox marks the end of summer and the beginning of fall in the northern hemisphere, and the beginning of spring in the southern hemisphere.
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which of the following best explains the potential impact of rising global temperatures on agricultural regions? responses the wheat belt will shift northward. the wheat belt will shift northward. mediterranean agriculture will expand southward. mediterranean agriculture will expand southward. polar regions will dry out, making cultivation impossible. polar regions will dry out, making cultivation impossible. nomadic herding will end as conditions become too harsh. nomadic herding will end as conditions become too harsh. centers of market gardening will shift to the arctic circle.
Of the responses provided, "mediterranean agriculture will expand southward" and "nomadic herding will end as conditions become too harsh" best explain the potential impact of rising global temperatures on agricultural regions.
One potential impact of rising global temperatures on agricultural regions is the expansion of Mediterranean agriculture southward. As temperatures increase, regions that were previously too hot and dry for certain crops, such as olive trees and grapes, may become more suitable for cultivation. This could lead to a shift in agricultural production from cooler, northern regions to hotter, southern regions.
Another potential impact of rising global temperatures on agricultural regions is the end of nomadic herding as conditions become too harsh. With rising temperatures, many regions that are currently used for grazing may become too dry and inhospitable for herding animals. This could lead to a decline in nomadic herding practices, which are an important aspect of many traditional cultures and economies.
In contrast, "the wheat belt will shift northward" and "centers of market gardening will shift to the arctic circle" are less likely to happen as it is not suitable for agriculture in those regions, due to lack of infrastructure, soil, water, and human capacities. "polar regions will dry out, making cultivation impossible" is also less likely to happen as polar regions are already inhospitable for agriculture and the lack of sunlight and extreme cold temperatures make it impossible to grow crops.
In conclusion, rising global temperatures have the potential to significantly impact agricultural regions in various ways. Of the responses provided, the expansion of Mediterranean agriculture southward and the end of nomadic herding as conditions become too harsh best explain the potential impact of rising global temperatures on agricultural regions. These changes will have a profound effect on the livelihoods, cultures, and economies of the regions affected.
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Explain ONE positive health effect likely to result from improved access to electricity in urban areas.
Improved access to electricity in urban areas can have several positive effects on health. One such effect is the ability to power refrigeration, which can help to reduce food spoilage and improve food safety. This can lead to a decrease in food-borne illnesses and an increase in access to nutritious food options.
below is a cross-section (side view) of plate boundaries. at which location is new oceanic lithosphere being created?
Divergent borders are spreading boundaries where hot mantle rock from depth is transported toward the surface, partially melting the mantle and creating a new oceanic crust.
The Tectonic plates are a collection of the parts that make up the lithosphere of the Earth, which is made up of the crust and upper mantle.
When two tectonic plates diverge, a diverging border is created. As magma (molten rock) rises from the Earth's mantle to the surface and solidifies to form new oceanic crust, earthquakes frequently occur along these borders. Divergent plate boundaries can be seen, for instance, in the Mid-Atlantic Ridge.
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8. the atlantic hurricane season runs from june through november. what environmental occurrences/factors might contribute to reoxygenation of the hypoxic layer and removal of the dead zone at the end of the summer?
The hypoxic or "dead zone" in the Gulf of Mexico is caused by an excess of nutrients, primarily from agricultural runoff, flowing into the Gulf and causing an overgrowth of algae.
One factor that can contribute to the reoxygenation of the hypoxic zone is the increased mixing of the water column, which can occur during the Atlantic hurricane season.
Strong winds and storm surges associated with hurricanes can mix the water, bringing oxygen-rich surface waters down to the deeper waters where the hypoxic zone is located.
Additionally, heavy rainfall associated with hurricanes can also flush nutrients out of the system, reducing the amount of algae growth and therefore reducing the demand for oxygen.
In summary, increased mixing of the water column, heavy rainfall, and seasonal decrease in temperature can contribute to reoxygenation of the hypoxic zone.
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Which phrase describes a feature of groundwater? I WILL GIVE BRAINLIEST IFCORRDCT
feeds rivers
provides habitats
makes up 75% of fresh water
used for hydroelectric power
Groundwater is a major source of fresh water, accounting for approximately 75% of the world's fresh water supply.
The Vital Role of Groundwater in Our WorldGroundwater makes up 75% of the world's fresh water supply. It is an important source of water for drinking, irrigation, and other uses. It also plays a role in the hydrological cycle by feeding rivers and providing habitats for aquatic life. It is estimated that more than two billion people rely on groundwater for their daily needs.
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A comet entering the inner solar system from afar will(a) form a tail and some time later form a coma.(b) form a coma and some time later form a tail.(c) always form a tail, but only sometimes form a coma.
A comet entering the inner solar system from afar will (b) form a coma and some time later form a tail.
As a comet enters the inner solar system, it starts to heat up due to the increased solar radiation. This causes the ice on the comet's surface to turn into gas, creating a large cloud of gas and dust around the nucleus of the comet known as a coma. As the coma grows, the solar wind and radiation pressure push the gas and dust away from the nucleus, creating a tail that points away from the sun. So first the coma is formed around the nucleus and then the tail is formed.
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The processes of diffusion and active transport are both used to
Answer:
Move molecules into or out of cells of the body
Explanation:
The processes of diffusion and active transport are both used to move molecules into or out of cells of the body.
what is the elevation of the west siberian plain
Answer:
100 meters to 300 meters
Explanation:
The ecoregion is centered on the West Siberian Plain, a flat lowland that only ranges from 100 meters to 300 meters above sea level.
Provide three examples of each type of boundary listed.
1. geometric straight borders running north/south
2. geometric straight borders running east/west
3. straight borders not running east/west or north/south
4. ethnic boundaries
Three examples of each type of boundary listed are 1. the Canada/US border along the 49th parallel, the border between Pennsylvania/Delaware, and the border between Canada and Alaska. 2.the border of USA-Canada, the border of Egypt -Sudan, and the border of Utah-Arizona. 3. the borders of Los Angeles- Nevada, the border of Algeria-Mali, and the border of Libya-Chad. 4. African American or black, Native Hawaiian or pacific islander, and European American or white.
A boundary refers to a real or imaginary line that separates two things. In geography, boundaries separate different regions of the Earth. Geometric boundaries refer to clear shapes such as straight lines and arcs irrespective of the physical and cultural features of the land it passes through.
1. The examples of geometric straight borders running north/south are the Canada/US border along the 49th parallel, the border between Pennsylvania/Delaware, and the border between Canada and Alaska.
2. The examples of geometric straight borders running east/west are the border of USA-Canada, the border of Egypt -Sudan, and the border of Utah-Arizona.
3. The examples of straight borders not running east/west, or north/south are the borders of Los Angeles- Nevada, the border of Algeria-Mali, and the border of Libya-Chad.
Ethnic boundaries refer to cognitive or mental boundaries in the minds of people and are the result of collective efforts of construction and maintenance.
4. The example of ethnic boundaries are African American or black, Native Hawaiian or pacific islander, and European American or white.
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the way of identifying explaining and predicting the human and physical paterns that conect various locations
Geography is the way of identifying explaining and predicting the human and physical paterns that conect various locations.
The curriculum places a strong emphasis on geography as a tool for comprehending and addressing environmental and sustainable development issues. Additionally, it serves as a crucial link between the social and natural sciences. Students who study geography come into contact with various societies and cultures.
Geography is significant because it advances our understanding of the world and its phenomena. It also has a fantastic practical side, though. For economists and managers, some engineering specialties, farmers, architects, geopoliticians, generals, and some geographic knowledge are crucial. The study of places and the interactions between people and their environments is known as geography. Geographers study the surface of the Earth and the various human societies that live there.
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what stage is marked by the creation of a well-formed ocean basin with a mid-ocean ridge in the middle?
Answer:
Stage C is marked by the formation of a well-formed oceanic basin with a mid-ocean ridge in the middle.
Stage C occurs when a large ocean has formed between the two continental margins and is still spreading. A well-developed mid-ocean ridge has formed along the divergent boundary.
The Atlantic Ocean is an example of Stage C.
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Answer:
mature is the answer.
Explanation:
in the mt. pinatubo video, the types of eruptive products and explosiveness of the eruption is what we expect in future eruptions from the cascade series of volcanoes along the west coast of the united states?
The statement "in the mt. Pinatubo video, the types of eruptive products and the explosiveness of the eruption is what we expect in future eruptions from the cascade series of volcanoes along the west coast of the United States" this is true.
The Cаscаde Volcаnoes (аlso known аs the Cаscаde Volcаnic Аrc or the Cаscаde Аrc) аre а number of volcаnoes in а volcаnic аrc in western North Аmericа, extending from southwestern British Columbiа through Wаshington аnd Oregon to Northern Cаliforniа, а distаnce of well over 700 miles.
The modern Pinаtubo is а dome complex аnd strаtovolcаno mаde of dаcite аnd аndesite. Meanwhile, Mount St. Helens is а strаtovolcаno, а steep-sided volcаno locаted in the Pаcific Northwest region of the United Stаtes in the stаte of Wаshington. That's why Mount Pinatubo has the same types of eruptive products and the explosiveness of the eruption as Mount St. Helens.
Your question is incomplete, but your full question can be seen in the Attachment.
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many rivers, like hte mississippi river, flow from north to south toward the equator. these rivers often carry a large amount of sediment that they deposit when entering the ocean. what effect does this redistribution of material have on the angular velocity of the earth? why?
This redistribution of material has an effect on the angular velocity of the earth, causing it to slow down slightly. This is known as "latitudinal drag" and is caused by the movement of mass from the poles to the equator.
The earth's rotation is affected by the distribution of mass on its surface. When a river carries sediment from the north and deposits it in the ocean in the south, it changes the distribution of mass on the earth's surface. This redistribution of material causes the earth's rotation to slow down slightly.
This slowing down of the earth's rotation is known as "latitudinal drag." It occurs because the sediment carried by the river is deposited in a more southerly location than where it was originally located. This causes the earth's rotation to slow down because the mass of the sediment is now located closer to the equator, which is a point of maximum rotation on the earth.
The effect of latitudinal drag on the earth's rotation is relatively small, but it is still measurable. It is caused by the redistribution of material on the earth's surface and the movement of mass from the poles to the equator. The effect of latitudinal drag is also affected by other factors such as the amount of sediment being carried by the river and the rate at which it is deposited in the ocean.
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Oceans in particular are experiencing tremendous changes due to the effects of human activity. Identify whether or not these human activities have a direct impact on oceanic life.
A) accelerated sense of time
B) use of fertilizer for agriculture
C) garbage disposal
D) offshore oil drilling
Has a Direct Impact on Oceanic Life garbage disposal ,use of fertilizer for agriculture ,offshore oil drilling. Correct option B, C,D
The oceans provide us with food, manage our temperature, and provide the majority of the oxygen we breathe. However, developing risks such as marine pollution, sea-level rise, and overfishing harm these aspects of our life and violate the human rights associated with them.
Overfishing, habitat loss, the introduction of exotic species, ocean pollution, acidification, and warming are all effects of human activity on marine life and environments.
Ocean currents play a significant role in climate regulation by transporting heat from the equator to the poles. Ocean currents are also crucial to marine life. They carry nutrients and food to organisms that live permanently attached in one place, and carry reproductive cells and ocean life to new places.
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Match the feature or term in column 1 to the characteristics in calumn 2
The correct answers are given below the match the pairs:
A. Subduction zone: when one plate goes under another
B. Fault: A break in the crust
C. Himalayas: Caused by continents colliding
D. Earthquakes: Occurs when a fault slips
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The correct question is in the attachment.
Select the three characteristics of a DEVELOPED country. (Select all that apply)
Select 3 correct answer(s)
A) High Infant Mortality Rate
B) High GDP
C) Agriculture is the Primary Economic Activity
D) Low Population Growth Rate
E) Population Geneterd in Rural Area
F) High Standard of Living
Answer:
i think a c e sorry if it's wrong
Explanation:
The three characteristics of a developed country are high GDP, a low population growth rate and a high standard of living. The correct options are b, d and f.
What is GDP?GDP or gross domestic product is a monetary measure of the market value of all the final goods and services produced and sold in a specific period by countries. Due to its complex and subjective nature, this measure is often revised before being considered a reliable indicator.
GDP per capita does not, however, reflect differences in the cost of living and the inflation rates of the countries; therefore, using a basis of GDP per capita at purchasing power parity may be more useful when comparing living standards between nations, while nominal GDP is more useful comparing national economies on the international market.
Total GDP can also be broken down into the contribution of each industry or sector of the economy.
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intense evaporation of oceanic water near the equator tends to cool waters in that region. true or false
Although land-based empires were important, what inventions in general led to Europeans venturing out to sea?Magnetic Compass
Astrolabe
Caravel
Cartography
The inventions that led to the Europeans venturing out to sea were the Magnetic Compass, Astrolabe, Caravel, and Cartography.
Land-based empires were predominant in Europe. Initially, Europe had been secluded from East and South Asia though not completely isolated. The European venturing out to sea for trade had brought about trade routes by way of the Red Sea for various products. Islamic traders also introduced them to their well-known routes in China.
The inventions of the Magnetic Compass, Astrolabe, Caravel, and Cartography were needed to facilitate sea travel in Europe. The Magnetic Compass was originally from China and help the sailors at sea steer in the right direction to reach their far destinations. An Astrolabe that looked like a hand-held model of the world, was also used by travelers to find out how far or near they were to the equator.
The Caravel, a small but fast sailing ship made by the Portuguese, helped navigate through storms easily. Finally, Cartography, or map drawing, helped sailors gain knowledge of the trade and sea routes and avoid possible storms and other obstructions.
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which river flows southward into the black sea and has been a source of trade and irrigation in eastern europe since the middle ages?
Answer:
The Dnipro River. Could also be spelled Dnieper if your teacher is cringe.
Explanation:
what are 4 common metamorphic minerals that are considered index minerals that help define metamorphic zones
Chlorite, epidote, garnet, and staurolite are 4 common metamorphic minerals that are considered index minerals that help define metamorphic zones.
Metamorphic rock index minerals indicate how much the original rock has been metamorphic and are referred to as metamorphic grade. Index minerals include chlorite, epidote, garnet, staurolite, kyanite, and sillimanite. Fine-grained chlorite crystals (invisible) give this slate its green color.
The nature of the terrain's metamorphic zone is also determined by the shape of the metamorphism. This depends on the geodynamic (tectonic and magmatic) environment in which the metamorphism occurred. A series of metamorphic belts is called a metamorphic facies series, and the most common of these is the Barovian (named after George Barrow, first mentioned in 1912). In this series of zones, both pressure and temperature increase gradually along the metamorphic gradient. Barovian metamorphism occurs during regional metamorphism caused by crustal thickening at the base of orogenic belts (under mountain ranges).
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if a trend is occurring at the local scale, the sub national scale, and the national scale, what can geographers likely conclude?
if a trend is occurring at the local scale, the sub-national scale, and the national scale, geographers can likely conclude that there will be a change on a global level.
What is geography?The study of locations and indeed the interactions amongst individuals and their environs are known as geography. The existing research literature on the Earth's territory and indeed the different human societies that live there.
In this, there were various changes that are happening. These changes will be with some kind of data. As the trend that was present was to make sure thatit has effected a lot of people. This was to empasize the geographers will know the connectivity of the things.
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explain why stratospheric ozone depletion has developed over the coldest part of earth (the poles) and reaches a maximum at the beginning of the polar spring.
The stratospheric ozone layer that protects the Earth from the sun's dangerous ultraviolet radiation has been decreasing over the past several decades, with the most dramatic depletion occurring over the poles.
This can be attributed to the unique climactic conditions at the poles, where temperatures are coldest during the winter months.
As the temperatures start to rise at the beginning of spring, the conditions become prime for the breakdown of ozone molecules, leading to a maximum stratospheric ozone depletion.
As the temperatures warm up, the ozone layer begins to rebuild, but the damage has already been done.
Since the beginning of the industrial revolution, human activity has caused an increase in the production of ozone-depleting substances (ODS), resulting in a decrease in stratospheric ozone levels.
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