Amplify-Earth's Changing Climate Unit Test Review

Front

What happened to the amount of energy absorbed by Earth's surface when methane in the atmosphere increased, according to ice core samples from Greenland?

Back

increased.

Front

How did energy in the Earth system change about 700 million years ago when the amount of carbon dioxide in the atmosphere decreased?

Back

There was less energy in the Earth system and less energy absorbed by Earth’s surface, because less energy entered than exited.

Front

What would happen to energy in the Earth system if the atmosphere had less methane?

Back

decrease, because less energy would enter than exit. This is because less exiting energy would be redirected (bounced) back toward Earth.

Front

Some scientists found that millions of years ago, there was a time when the number of trees increased very quickly, leading to a decrease in the amount of carbon dioxide in the atmosphere. What would you predict about the amount of energy absorbed by Earth's surface during this time?

Back

decreased.

Front

What might scientists expect to see in the atmosphere, and what has changed about energy in the Earth system?

Back

Methane increased, leading to more energy in the Earth system and more energy absorbed by Earth's surface.

Front

What change to the atmosphere could have caused more energy to enter the Earth system than exited, according to ice core data from Greenland?

Back

Carbon dioxide increased, leading to more energy in the Earth system because more exiting energy was redirected (bounced) back toward Earth.

Front

What happened to the energy absorbed by Earth’s surface about 15 million years ago when atmospheric carbon dioxide increased?

Back

increased.

Front

How should the energy in the Earth system change when the amount of methane in the atmosphere increases?

Back

more energy in the Earth system and more energy absorbed by Earth’s surface, because more energy enters than exits.

Front

What happened to energy in the Earth system from about 120 to 80 million years ago when a large amount of carbon dioxide was released from rock on the ocean floor?

Back

Energy in the Earth system increased, because more energy entered than exited. This is because more exiting energy was redirected (bounced) back toward Earth.

Front

What happens to the amount of energy absorbed by Earth’s surface when methane decreases?

Back

decrease.