Unit 10: Air, Climate, & Ozone

What are greenhouse gases?

• gases that cause climate change
• gases that emit green smoke
• gases that are used to make green colored glass

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The average temperature of the surface of Earth has increased approximately 1°C in the past century. Which reason best explains this increase in temperature?

• lower levels of ozone in the atmosphere
• lower levels of nitrogen in the atmosphere
• higher levels of carbon dioxide in the atmosphere
• higher levels of oxygen in the atmosphere

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Which of the following have been linked to climate change?  

• droughts
• flooding
• melting of polar ice caps
• all of the above

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Which is a primary energy source used by power plants to generate electricity?

• coal
• wood
• gasoline
• batteries

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Changes in temperature are expected to be greatest

• near the equator
• near the poles
• between the equator and the North Pole
• between the equator and the South Pole

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The main human activity that releases greenhouse gases is

• using bottled water
• burning fossil fuels
• texting on cellphones
• eating meat

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Some greenhouse gases are naturally present in the Earth's atmosphere

• True
• False

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Things you can do to help decrease global warming include:

• Eat more ice cream.
• Keep your freezer door open.
• Keep your air conditioner on high.
• Turn off your lights when you’re not using them.

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Melting of glaciers and polar ice caps....

• will result in cooler temperatures in the Arctic
• will result in sea-levels rising
• Will have no effect on ecosystems
• None of the above

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Carbon is stored in

• Trees and other living things
• Oceans
• underground in soil and fossil fuels
• All are correct

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