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Which of the following defines the effect of deforestation on environment?

1. Level of \( \mathrm{CO}_{2} \) in the atmosphere will rise
2. Global warming
3. Both A and B
4. None of the above

Correct answer: Both A and B

Solution

Trees remove carbon dioxide from the air during photosynthesis, so cutting them down leaves more CO2 in the atmosphere. Higher CO2 strengthens the greenhouse effect, which leads to global warming, so both statements are correct.

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