Unit 6 Test Review: Global Climate Change

What is a major source of air pollution?

• planting more trees in a rain forest

• the production of energy using solar and nuclear power

• small farms raising large number of livestock (pigs, cows, chickens)

• building a dam for hydroelectric power

What is the "Greenhouse Effect" and how does it relate to life on Earth?

• it is the ability of gases in the atmosphere to trap heat and make Earth habitable.

• it is how we grow food to eat

• it is the idea that green plants provide food for humans

• it is the effect that greenhouses have

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How do plants affect carbon dioxide levels in the atmosphere?

• They reduce the amount of atmospheric CO2

• They increase the amount of CO2 in the atmosphere

• Does not change the amount of atmospheric CO2

• They cause humans to increase CO2 in their lungs.

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Which of the following is an example of a greenhouse gas?

• Oxygen

• Nitrogen

• Water vapor

• Carbon Dioxide

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True or False;

All of the radiation from the Sun is absorbed by the Earth.

• True

• False

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Which of the following human activities do NOT contribute to the total amount of greenhouse gases in Earth's atmosphere?

• raising cows

• driving cars

• heating homes

• planting orchards

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Which of the following is an example of how climate change could affect agriculture?

• fewer pests and weeds

• Mammoths will thaw from permafrost and eat all of the plants

• Increased droughts could reduce the amount of water available for irrigation

• Fewer storms - so more nice weather for planting and harvesting

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The ozone layer protects us from

• CFCs

• Increased atmospheric heat

• UV radiation

• Decreased atmospheric heat

True or False: The Greenhouse Effect is naturally occurring and is required for life to exist on Earth

• True

• False

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NGSS.MS-ESS3-5

By decreasing our demand for meat that comes from cows, we can cut down on the emission of this greenhouse gas:

• Carbon dioxide

• Nitrous oxide

• methane

• water vapor