SCIENCE
EARTH SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a decrease in the rate of divergence of lithospheric plates along a mid-ocean ridge
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a decrease in the amount of insolation reaching Earth’s surface
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an increase in the amount of greenhouse gases in Earth’s atmosphere
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an increase in the amount of vegetative cover in the tropics
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Detailed explanation-1: -Human activities are at the root of this phenomenon. Specifically, since the industrial revolution, carbon dioxide and other greenhouse gas emissions have raised temperatures, even higher in the poles, and as a result, glaciers are rapidly melting, calving off into the sea and retreating on land.
Detailed explanation-2: -Climate change is the result of the total concentration of greenhouse gases in the atmosphere. And carbon dioxide, the primary greenhouse gas driving climate change, stays in the atmosphere for hundreds of years.
Detailed explanation-3: -Since the Industrial Revolution, human activities have released large amounts of carbon dioxide and other greenhouse gases into the atmosphere, which has changed the earth’s climate. Natural processes, such as changes in the sun’s energy and volcanic eruptions, also affect the earth’s climate.
Detailed explanation-4: -Geological records show that there have been a number of large variations in the Earth’s climate. These have been caused by many natural factors, including changes in the sun, emissions from volcanoes, variations in Earth’s orbit and levels of carbon dioxide (CO2).