Earth is a comfortable place for living beings. These are simply the ideal temperatures for plants and animals – including humans – to thrive. Why is Earth so special?

Well, one of the reasons is: the greenhouse effect!

Comprehension questions:
1. The clear glass of a greenhouse allows sunlight to enter the greenhouse, while trapping the heat of _______ inside. This is how a greenhouse keeps plants warm, even at night and in winter.
2. What is the name of the layer of gas that surrounds our Earth?
3. Name one of the greenhouse gases.
4. What types of human activities can release more carbon dioxide into our atmosphere?
5. True or false: Additional greenhouse gases in our atmosphere are causing our planet to warm.

Answer key:
1. Sun
2. Atmosphere
3. One of the following: Water vapor; Carbon dioxide; Methane; Ozone; Nitrous oxide; Chlorofluorocarbons
4. Anything that involves burning fossil fuels
5. True

Learn more about
https://climatekids.nasa.gov/greenhouse-effect/
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