Class 10 Science Chapter 13 MCQ Quiz Our Environment

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Class 10 Science Chapter 13 MCQ Quiz Our Environment

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Class 10 Science Chapter 13 MCQ Quiz Our Environment

Boost your revision with Class 10 Science Chapter 13 Our Environment MCQs, covering ecosystems, trophic levels, energy flow, biomagnification, and environmental issues. Ideal for CBSE Class 10 board exam preparation.

1 / 10

The 5R principle does NOT include:

2 / 10

Ozone layer is present in which part of the atmosphere?

3 / 10

The process of accumulation of harmful chemicals in organisms is called:

4 / 10

Decomposers are important because they:

5 / 10

In a food chain, the largest energy is present at:

6 / 10

Which of the following is a non-biodegradable waste?

7 / 10

Which gas is primarily responsible for ozone layer depletion?

8 / 10

The flow of energy in a food chain is:

9 / 10

Which of these organisms is always at the first trophic level?

10 / 10

Which of the following is a biodegradable waste?

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