Assertion: Ozone is getting depleted due to .
Reason: With the depletion of the ozone layer more UV radiation filters into the troposphere.
Both assertion and reason are true and reason is not the correct explanation of the assertion.
.
4. Ozone is getting depleted due to . With the depletion of the ozone layer more UV radiations filters into the troposphere (the lowest region of the atmosphere). Both the assertion and reason are true but the reason given here is the effect of assertion and not its reason.
So, both the assertion and reason are true and the reason is not the correct explanation of the assertion.
Hence, option B is the correct answer.