Topic Details (Notes format)

Ecosystem and Energy Flow

Subject: General Science

Book: NCERT Biology Class 12

Study of energy transfer in ecological systems.
- **Food Chains and Food Webs**:
- Trophic levels and their roles.
- **Ecological Pyramids**:
- Pyramid of energy, biomass, numbers.
- **Energy Flow in Ecosystems**:
- Primary and secondary production.

**Possible Exam Questions:**
1. Define food chain and food web with examples.
2. What are the different types of ecological pyramids?
3. Explain the process of energy flow in an ecosystem.
4. How does human activity impact the energy flow in ecosystems?
5. Discuss the significance of trophic levels in an ecosystem.

Practice Questions

What is the chemical formula for carbon dioxide?

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Which element has the highest electrical conductivity?

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What is the term for water changing from liquid to gas?

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Which is the largest planet in the Solar System?

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Which vitamin is essential for calcium absorption?

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What is the pH of pure water at 25°C?

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Which organelle is known as the "powerhouse of the cell"?

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

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What is the most common state of matter in the universe?

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What is the chemical formula of sulfuric acid?

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