The greenhouse effect is the process through which______is trapped near Earth's surface by substances known as 'greenhouse gases.' Imagine that these gases act like a blanket surrounding our planet, helping to maintain a___than it would have otherwise. Greenhouse gases include___, methane, ozone, nitrous oxide, chlorofluorocarbons, and water vapor.

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The greenhouse effect is the process through which heat is trapped near Earth's surface by substances known as 'greenhouse gases.' Imagine that these gases act like a blanket surrounding our planet, helping to maintain a warmer temperature than it would have otherwise. Greenhouse gases include carbon dioxide, methane, ozone, nitrous oxide, chlorofluorocarbons, and water vapor.