Lesson on Global Warming

Do we need greenhouse gases on Earth?

• Yes - they keep the Earth warm
• Yes - they keep all the gases on our planet
• No - they only cause terrible climate change
• No - they only block some of the Sun's rays

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Why is the increase of greenhouse gases a big issue?

• It causes climate change and increases the global temperature

• It can lead to a major increase in greenhouses

• It leads to more factories

• It causes a major decrease in people

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The gradual increase in the temperature of the atmosphere is known as ________________.

• Greenhouse Effect
• Global Warming
• Carbon Dioxide Gases
• Methane

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Which of the following is the most troubling greenhouse gas being produced by humans?

• Water Vapor
• Carbon Dioxide
• Methane
• Nitrous Oxide

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Why does cutting down trees increase global warming?

• trees use carbon dioxide in photosynthesis

• trees provide shade which counteracts global warming

• trees absorbs the sun's energy without radiating back into the atmosphere

• trees drain greenhouse gases like methane from soil

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What happens to the temperature if more greenhouse gases are released into the atmosphere?

• Temperature goes up
• Temperature goes down

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Without any greenhouse gases, the Earth would be too

• warm

• cold

• dead

• funny

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Burning fossil fuels is one of the main causes for global warming.

• True
• False

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By what amount did carbon dioxide in Earth's atmosphere increase between 1960 and 2000?

• 0-1 ppm

• 40-60 ppm

• 110 -120 ppm

• 360 -370 ppm

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Which of the following is NOT an effect of global warming?

• Polar ice caps will melt.

• Coastal regions will be covered with rising sea levels.

• Some areas will experience serious droughts.

• The Earth's rotation will slow down and eventually stop.

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