Science

10th

grade

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CBSE Class 10 Science Chapter 15: Our Environment

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25 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    Every food chain in the ecosystem begins with………., which are the original source of food.

    Saprophytes

    Parasites

    Producers

    Herbivores

  • 2. Multiple Choice
    30 seconds
    1 pt

    We should reduce the use of the plastic bags, bottles etc. because:

    They are not durable

    They are non-biodegradable

    They are made of toxic materials

    They react with the atmospheric gases

  • 3. Multiple Choice
    30 seconds
    1 pt

    Among the following choose the correct option which contains only biodegradable items?

    (i) Wood, paper, PVC

    (ii) Paper, seeds, detergent,

    (iii) Paper, animal excreta, wood

    (iv) Wool, leaves, paper

    (i), (ii) and (iii)

    (i) and (iii)

    (ii), (iii) and (iv)

    (iii) and (iv)

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