Question

Assertion (A): Biological magnification is a phenomenon through which certain pollutants go on accumulating in increased concentration along the food chain.

Reason (R): The pollutants go on accumulating because they are non-biodegradable and each predator feeds on many preys and hence accumulates more.

Options

• Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

• Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

• Assertion (A) is true but reason (R) is false.

• Both assertion (A) and reason (R) are false.

Answer 1

Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

Explanation:

The assertion correctly defines biomagnification, and the reason correctly notes that persistent pollutants accumulate as predators consume many prey. However, the supplied answer key classifies the reason as not the correct explanation of the assertion.