Global Warming

What is Global Warming?

• Increasing temperature in Earth's atmosphere

• Decreasing temperature in a city

• Increasing rain rates in Earth

• Decreasing temperature rates

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Global warming is caused by a phenomenon known as the greenhouse effect.

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Without the Greenhouse Effect the Earth would be too

• warm 
• cold
• dead
• funny

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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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Worldwide, temperatures have been increasing for more than 100 years.  Is this evidence of global warming?

• yes
• no

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Why are too many greenhouse gases bad for the environment?

• They cause trees to die.

• They release heat and will be the cause of the next ice age.

• They trap heat in our atmosphere causing the planet to warm up.

• They are fossil fuels which pollute our environment.

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How can Global Warming cause sea levels to rise?

• by causing it to rain more often.

• by creating bigger and more powerful hurricanes.

• by melting glaciers and ice caps.

• by increasing the number of undersea volcanic eruptions.

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Why does cutting down trees increase Global Warming?

• Trees absorb the Sun’s energy without radiating back into the atmosphere.

• Trees drain Greenhouse gases like methane from soil.

• Trees provide shade which counteracts Global Warming.

• Trees soak up Carbon dioxide.

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Burning fossil fuels is one of the main causes for Global Warming.

• True

• False

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The main human activity that releases greenhouse gases is...

• using bottled water

• eating meat

• burning fossil fuels

• texting on cellphones

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