How Nature Works in Harmony — Practice Quiz
CBSE · Class 8 · Science
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Quick Quiz: How Nature Works in Harmony
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What is a habitat?
What is a population in ecological terms?
Organisms that make their own food are called:
What is the role of decomposers in an ecosystem?
Sample Questions
Which of the following are biotic components of an ecosystem?
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Trees, Fish, Bacteria, Birds
Biotic components are living parts of an ecosystem including plants (trees), animals (fish, birds), and microorganisms (bacteria). Sunlight and soil are abiotic (non-living) components.
Which animals are herbivores?
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Deer, Rabbit, Cow
Herbivores are animals that eat only plants and plant products. Deer, rabbit, and cow feed on grass and leaves. Tiger and eagle are carnivores that eat other animals.
In a food chain: Grass → Grasshopper → Frog → Snake, what is the second trophic level?
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Grasshopper
In this food chain, grass (producer) is at the first trophic level, grasshopper (primary consumer/herbivore) is at the second level, frog is third, and snake is fourth.
What is a food web?
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Interconnected food chains in an ecosystem
A food web shows how multiple food chains are connected in an ecosystem. One organism may be part of several food chains, creating a complex network of feeding relationships.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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