Topic Details (Notes format)

Our Environment

Subject: General Science

Book: NCERT Science Class 10

The environment consists of biotic and abiotic components.
- **Ecosystem**:
- Producers, Consumers, Decomposers.
- **Food Chains and Food Webs**:
- Energy transfer from one trophic level to another.
- **Environmental Issues**:
- Ozone Layer Depletion.
- Global Warming.
- Waste Management.

**Possible Exam Questions:**
1. What are the components of an ecosystem?
2. Explain the importance of food chains and food webs.
3. How does human activity contribute to global warming?
4. What is the significance of waste management?
5. Discuss the impact of ozone depletion on life.

Practice Questions

Which gas is used in fire extinguishers?

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What is the chemical formula of water?

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What is the chemical formula of methane?

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Which gas is used in the process of welding?

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Which type of radiation has the shortest wavelength?

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Which vitamin is responsible for blood clotting?

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What is the unit of electric current?

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What is the most abundant gas in the Sun?

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Which of the following is a fundamental force in nature?

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Which organ in the human body produces bile?

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