Topic Details (Notes format)

Environmental Issues

Subject: General Science

Book: NCERT Biology Class 12

Humans impact the environment through pollution and resource consumption.
- **Air and Water Pollution**:
- Causes and control measures.
- **Ozone Depletion and Global Warming**:
- Effects on climate.
- **Sustainable Development**:
- Conservation strategies.

**Possible Exam Questions:**
1. Explain the causes and effects of acid rain.
2. What is global warming? How can it be reduced?
3. Discuss the role of renewable energy sources in sustainability.
4. How does ozone depletion occur?
5. What are the methods to control water pollution?

Practice Questions

Which element is the most abundant in the Earth’s crust?

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What is the primary component of the Sun?

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Which type of blood vessel carries blood away from the heart?

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Which vitamin is essential for calcium absorption?

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Which vitamin is responsible for blood clotting?

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What is the atomic number of hydrogen?

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What is the main function of the ozone layer?

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What is the chemical formula of water?

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What is the largest organ in the human body?

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Which process separates light into its component colors?

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