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CBSE › Class 8 › Science › How Nature Works in Harmony (Class 8 NCERT New)
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1. Which of the following is a biotic component of an ecosystem?

2. Which of these shows the correct flow of energy?

3. Which of these is a non-living (abiotic) factor in a forest ecosystem?

4. Which process helps recycle nutrients back into the soil?

5. Farmers add compost to the soil mainly to —

6. If all decomposers vanished from Earth —

7. A food chain is: Grass → Deer → Tiger → Vulture Which organism gets the least energy from the Sun’s original input?

8. In a pond ecosystem, if fish population decreases, which group is most likely to increase?

9. Imagine an area where both herbivores and carnivores are removed. Over time —

10. Which of these is an example of mutualism?

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