Topic Details (Notes format)

Pollution of Air and Water

Subject: General Science

Book: NCERT Science Class 8

Pollution is the contamination of natural resources.
- **Air Pollution**:
- Causes: Factories, vehicles.
- Effects: Global warming, acid rain.
- **Water Pollution**:
- Causes: Industrial waste, sewage.
- Effects: Marine life destruction.

**Possible Exam Questions:**
1. What are the causes of air pollution?
2. Explain the effects of water pollution.
3. How does acid rain form?
4. Discuss measures to reduce pollution.
5. How does pollution affect human health?

Practice Questions

Which of the following is a fundamental force in nature?

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Which gas is used in fire extinguishers?

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What is the primary source of energy for life on Earth?

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What is the unit of force in the SI system?

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Which gas is used in the process of welding?

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Which is the largest planet in the Solar System?

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What is the chemical formula for carbon dioxide?

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Which scientist is known for the laws of motion?

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