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6 Cards in this Set
- Front
- Back
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What has happened to average temperature of Earth |
Increased |
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Used to change naturally in past naturally but |
Now it's human activities |
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Hoe do humans release co2 |
Due to burning fossil fuels (coal and oil) |
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How is meths produced by humans |
Rice farms Cows passing wind |
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Co2 and methane are |
Greenhouse gases |
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What are greenhouse gases |
Gases that trap heat in atmosphere leading to global warming |
