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

What is the chemical formula of methane?

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What is the main function of the ozone layer?

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What type of macromolecule is an enzyme?

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Which component of blood carries oxygen?

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Which type of bond is present in sodium chloride?

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Which gas is used in the process of welding?

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Which element has the highest electrical conductivity?

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Which organ stores and releases glucose in the human body?

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What type of energy is stored in a stretched rubber band?

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What is the function of platelets in the human body?

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