Earth Changing Climate

Climate researchers in Greenland can use ice core samples to tell them about methane in the atmosphere in the past. Researchers found a sample that showed a time period when methane in the atmosphere increased. What happened to amount of energy absorbed by Earth's surface during this time?

During this time, the amount of energy absorbed by Earth’s surface

• stayed at a constant level.

• changed unpredictably.

• increased.

• decreased.

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Ice core data from Greenland indicates there was a time period on Earth when the atmosphere changed so more energy entered the system than exited. What change to the atmosphere could have caused this and how would it have affected energy on Earth during that time?

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

• Carbon dioxide increased, leading to more energy in the Earth system because more energy was trapped by gases and held in the atmosphere.

• Carbon dioxide decreased, leading to less energy in the Earth system because less exiting energy wasredirected (bounced) back toward Earth.

• Carbon dioxide decreased, leading to more energy in the Earth system because less energy from the sun was redirected (bounced) back toward outer space.

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A climatologist is creating a simulation for Earth’s climate and is working on how to set it up. One of the options for the simulation is to increase methane in the atmosphere. How should the energy in the Earth system change when the amount of methane in the atmosphere increases?

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

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

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

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

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A climatologist was working with a computer simulation that models Earth’s climate and atmosphere. She set up the controls of the simulation to decrease the amount of methane in the atmosphere. What should happen to the amount of energy absorbed by Earth’s surface?

When methane decreases, the amount of energy absorbed by Earth’s surface should

• change unpredictably.

• stay at a constant level.

• increase.

• decrease.

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The gradual increase in the average temperature of our planet Earth is called?

• Greenhouse Effect

• Global Warming

• Greenland Effect

• Ice Age

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Which of the following are consequences of climate change?

• Glaciers are shrinking and sea levels are rising

• Heat waves are longer and more intense

• Plant and animal habitat ranges are shifting

• All of the above

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The gradual increase in the average temperature of our planet Earth is called

• Greenhouse Effect

• Global Warming

• Greenland Effect

• Ice Age

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Climate researchers are creating a computer simulation to help them understand changes in the Earth system. They want to use the simulation to see what happens when they increase the carbon dioxide in the atmosphere. What should their simulation show about energy absorbed by Earth’s surface? When carbon dioxide in the atmosphere increases, the amount of energy absorbed by Earth’s surface should . . .

• increase

• decrease

• stay at a constant level

• change unpredictably

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The graph above shows global temperature changes between the years 1880 and 2011. Which of the following best describes the changes seen in the graph?

• The graph shows a trend of increasing temperature over time.

• The graph shows the Annual Mean and 5-Year Mean have different trends.

• The graph shows temperatures go up and down, with no trend.

• The graph shows too much fluctuation to be confident about a trend.

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Geologists have found rocks showing that about 700 million years ago, there was a time period when the amount of carbon dioxide in the atmosphere decreased. How did energy in the Earth system change during this time?

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

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

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

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

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