How Nature Works in Harmony MCQ: 8th Science Chapter 12

Boost your CBSE exam preparation with our Class 8 Science Chapter 12 – How Nature Works in Harmony MCQ Test. This free quiz is designed from NCERT textbooks, CBSE syllabus, educational videos, and Vidyalite’s Flashcards to help you understand ecological balance, interdependence of living and non-living components, food chains, food webs, and the role of biodiversity in sustaining life. Perfect for concept strengthening, revision, and enhancing your exam readiness.

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Time: 10 Minutes for 10 Question.

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8th Science: How Nature Works in Harmony

1 / 10

1. What is the correct sequence in a food chain involving grasshopper?

Grass → Grasshopper → Snake → Frog

Grasshopper → Grass → Snake → Eagle

Grass → Grasshopper → Frog → Snake → Eagle

Grass → Frog → Grasshopper → Eagle

2 / 10

2. What is an example of a herbivore from the forest ecosystem?

Fox

Squirrel

Deer

Shikra

3 / 10

3. What does a food chain show?

The life cycle of animals

How plants grow

The feeding relationships among organisms

Water flow in ecosystems

4 / 10

4. What term is used for organisms that make their own food?

Consumers

Herbivores

Producers

Decomposers

5 / 10

5. What can overuse of synthetic fertilisers result in?

Increased humus

Better water retention

Soil erosion and fertility loss

More microorganisms

6 / 10

6. What do mangrove forests like the Sundarbans help protect against?

Soil fertility

Earthquakes

Tsunamis and floods

Global warming

7 / 10

7. What is a human-made ecosystem?

River

Forest

Agricultural field

Ocean

8 / 10

8. What do decomposers do in an ecosystem?

Trap sunlight

Absorb carbon dioxide

Break down dead matter

Pollinate flowers

9 / 10

9. What is the term for the place where an organism lives?

Shelter

Niche

Habitat

Community

10 / 10

10. In which type of relationship do both organisms benefit?

Parasitism

Commensalism

Mutualism

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