NEET UG BIOLOGY MCQ: ENVIRONMENTAL ISSUES

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Analyzing +4 | -1

Assertion : Major cause of ozone depletion is
CFCs but other greenhouse gases also have a
negative effect on ozone layer.

Reason : Greenhouse gases increases the
temperature of troposphere but decreases the
temperature of stratosphere which facilitate the
ozone depletion.

View answer and explanation

Correct option: A

If both Assertion and Reason are true and
Reason is the correct explanation of Assertion

Option A (If both Assertion and Reason are true and Reason is the correct explanation of Assertion) is correct because CFCs are a major cause of ozone depletion, and greenhouse gases can indirectly contribute to it by cooling the stratosphere.

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Supreme court of India has ordered the Delhi government to take measures to improve the quality of air. The government started to use _________________ in public fleet. The unfavorable alteration of environment due to human activities is termed as The polluting strength of sewage is usually characterized by its A lake near a village suffered heavy mortality of fishes with in a few days. Consider the following reasons for this.
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