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Solved CBSE Class 10 Science Chapter 15 Assertion and Reason Questions – Our Environment. Here we (Net Explanations) working very hard to providing you with the Important Assertion Reason Questions for this Chapter.
Assertion Reason Questions – Our Environment
In the following Questions, the Assertion and Reason have been put forward. Read the statements carefully and choose the correct alternative from the following:
- (a) Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.
- (b) The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.
- (c) Assertion is true but the Reason is false.
- (d) The statement of the Assertion is false but the Reason is true.
1.) Assertion: Accumulation of harmful chemicals is higher in case of organisms at higher trophic level.
Reason: Food chain normally can’t reduce beyond 3 or 4 trophic level.
Ans. (b) The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.
2.) Assertion: Vegetarian food habit is more beneficial to organisms.
Reason: Only 10% energy is available as food from one trophic level to next.
Ans. (a) Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.
3.) Assertion: Autotrophs can produce food on its own.
Reason: Green plants can absorb 1% energy of sunlight that fall on the leaves.
Ans. (b) The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.
4.) Assertion: Ozone layer is getting depleted at upper atmosphere and it is a serious cause of concern.
Reason: CFC reacts with ozone and breaks it.
Ans. (a) both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.
5) Assertion: Biodegradable substances result in the formation of compost and natural replenishment.
Reason: It is due to breakdown of complex inorganic substances into simple organic substances
Ans. c) A is true but R is false.
Here is the Solution Of CBSE Class 10 Science Chapter 15 Assertion and Reason Questions – Our Environment. We wish for your continued success.
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