12th Biology Ecosystem Quiz for 2026 exam

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Ecosystem MCQ Test Quiz

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Time: 10 Minutes for 10 Question.

12th Biology: Ecosystem

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1. The decomposed organic matter in soil is called

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2. Which one of the following has the largest population in a food chain?

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3. Humification leads to formation of

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4. Carnivores belong to

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5. Grazing food chain starts with

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6. In a grassland ecosystem, the pyramid of biomass is

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7. The percentage of solar radiation captured by plants is around

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8. The most abundant gas released during decomposition is

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9. In sedimentary cycles, the reservoir is

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10. Primary productivity depends on

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Score card Ecosystem Mock Test

Pos.NameScorePoints
1tanishq padhai mew nakli70 %7
2DFJHDF SDGHSH60 %6

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  • Thamaya Hareni
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    July 8, 2025, 5:49 am
    I’m glad that I can win this quiz competition