Greenhouse gases

Front

What are greenhouse gases?

Back

Greenhouse gases are gases in the Earth's atmosphere that trap heat. They include carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O).

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What is the greenhouse effect?

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The greenhouse effect is the process by which greenhouse gases trap heat from the Sun in the Earth's atmosphere, keeping the planet warm.

Front

What is global warming?

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Global warming refers to the long-term increase in Earth's average surface temperature due to human activities, primarily the emission of greenhouse gases.

Front

Name three effects of global warming.

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1. Increase in Earth's temperatures 2. Increase in ocean temperatures 3. Rise in sea levels.

Front

True or False: All of the radiation from the Sun is absorbed by the Earth.

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False. Some radiation is reflected back into space.

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How does sunlight affect the Earth's surface?

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Sunlight warms the Earth's surface, which is essential for life.

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What role do greenhouse gases play in maintaining Earth's temperature?

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Greenhouse gases warm the surface of the Earth and help it stay at a comfortable, warm average temperature.

Front

What is carbon dioxide (CO2)?

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Carbon dioxide is a greenhouse gas produced by burning fossil fuels, deforestation, and respiration.

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What is methane (CH4)?

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Methane is a potent greenhouse gas that is released during the production and transport of coal, oil, and natural gas, as well as from livestock and other agricultural practices.

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What is nitrous oxide (N2O)?

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Nitrous oxide is a greenhouse gas that comes from agricultural and industrial activities, as well as during combustion of fossil fuels and solid waste.