Climate Quiz 8

How do cows contribute to global warming? Choose the most scientifically accurate answer.

• Cows eat all the plants that remove CO₂ from the atmosphere.

• Cows release methane during digestion.

• Cows do not cause global warming, people do.

• Raising cattle uses land that could be used to grow trees.

• Cows drive Hummers when farmers aren’t looking.

Which set of processes use oxygen and release carbon dioxide to the air?

• plant and animal respiration.

• animal respiration and using natural gas.

• volcanic eruptions and weathering rocks.

• photosynthesis and cow digestion.

• photosynthesis and decaying leaves.

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As the climate cools, ice sheets grow larger. Ice reflects solar radiation, and so the Earth absorbs less heat. This results in the Earth becoming cooler, which leads to more ice forming. This is an example of:

• a positive feedback loop.

• a negative feedback loop.

• the Greenhouse Effect.

• a climate proxy.

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Weathering uses up carbon dioxide, which causes the temperature to drop. When the temperature drops, weathering rates slow down, using up less carbon dioxide. Carbon dioxide increases and temperatures start to rise. This is an example of:

• a positive feedback loop.

• a negative feedback loop.

• the Greenhouse Effect.

• the Erosion Effect.

• the Coriolis Effect.

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People living in China and India are buying more cars as they get better jobs and earn more money. Previously, many Chinese and Indian citizens used bicycles and trains for transportation. How will their change in transportation affect global climate?

• Global temperatures might decrease, because the large vehicles will absorb less heat than the surrounding land.

• Global temperatures could increase, since more carbon dioxide will be added to the atmosphere.

• There will be no effect on global climate, just on demand for cars.

• Rainfall will probably increase, since more carbon dioxide will be added to the atmosphere.

• The populations are increasing so rapidly that human body heat will increase global temperatures.

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Paving land to increase development in cities contributes to:

• lower temperature readings.

• a reduction in greenhouse gases.

• satellite interference.

• the heat-island effect.

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Which of the following factors is likely NOT included in computer climate models?

• phases of the moon

• methane

• orbital variations

• carbon dioxide

• global temperature

The ways that different factors interact in global climate are called:

• feedback loops.

• orbital variations.

• insolation.

• climate models.

• heat-island effects.

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How can climate models be tested using historical data?

• Determine if there used to be global warming.

• Determine greenhouse gas levels over time.

• Find out if they predict present-day climate.

• Find out when the next snowstorm will hit Everett.

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In the Pacific Northwest, warmer global temperatures would NOT lead to:

• more extreme weather events.

• the North Atlantic Deep Water decreasing.

• increased precipitation.

• southward agricultural shift.

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