Understanding Global Warming
A worksheet for 7th graders to learn about the causes, effects, and solutions related to global warming.
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Understanding Global Warming
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Read each question carefully and answer to the best of your ability. Use complete sentences for short answer questions.
1. Which of the following is the primary gas responsible for the greenhouse effect and global warming?
Oxygen
Nitrogen
Carbon Dioxide
Hydrogen
2. What is one major effect of global warming on Earth's polar regions?
Increased snowfall
Melting ice caps and glaciers
Colder ocean currents
Expansion of animal habitats
3. The Earth's average temperature is gradually increasing, a phenomenon known as .
4. Burning fossil fuels releases large amounts of into the atmosphere, contributing to global warming.
5. The greenhouse effect is a completely man-made phenomenon.
True
False
6. Deforestation helps to reduce the amount of carbon dioxide in the atmosphere.
True
False
7. Describe two ways human activities contribute to global warming.
8. Explain one potential consequence of rising sea levels due to global warming.
Use the words below to complete the sentences.
9. The effect is a natural process that warms the Earth's surface.
10. The burning of like coal and oil releases carbon dioxide.
11. The cutting down of forests, known as , reduces the number of trees that can absorb carbon dioxide.
12. Melting glaciers and ice sheets contribute to a rise in global .
13. Observe the diagram below, which illustrates some causes and effects of global warming. Based on the diagram and your knowledge, identify one cause and one effect not explicitly mentioned in the previous questions.
