Environmental Issues - Class XII Biology Quiz
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Preview questions
1. What is the primary cause of ozone layer depletion?
Carbon dioxide emissions · Chlorofluorocarbons (CFCs) · Methane production · Nitrous oxide
2. Which of the following is a major consequence of global warming?
Increased biodiversity · Melting of polar ice caps · Decreased sea levels · Enhanced soil fertility
3. What is the term for the gradual increase in the Earth's average temperature?
Greenhouse effect · Climate change · Global warming · Ozone depletion
4. Which gas is primarily responsible for the greenhouse effect?
Oxygen · Nitrogen · Carbon dioxide · Argon
5. What is the main source of acid rain?
Carbon monoxide · Sulfur dioxide · Ozone · Methane
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