Topic Details (Notes format)

Ecosystem

Subject: General Science

Book: NCERT Biology Class 12

Interaction of living organisms with the environment.
- **Components of an Ecosystem**:
- Biotic and abiotic.
- **Energy Flow in Ecosystem**:
- Food chains and pyramids.
- **Ecological Succession**:
- Types and importance.

**Possible Exam Questions:**
1. Define the components of an ecosystem.
2. Explain energy transfer in a food chain.
3. What is ecological succession? Give an example.
4. Discuss the different types of ecological pyramids.
5. How do human activities affect ecosystems?

Practice Questions

Which vitamin is essential for calcium absorption?

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What is the SI unit of temperature?

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Which organ is responsible for filtering blood in the human body?

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What is the primary component of the Sun?

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Which particle is responsible for the negative charge of an atom?

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Which type of radiation has the shortest wavelength?

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Which law states that energy cannot be created or destroyed?

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

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Which part of the human eye is responsible for focusing light on the retina?

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Which gas is released during photosynthesis?

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