Water reuse concept – UGC NET Question

Water reuse means employing treated wastewater as a resource for beneficial uses,instead of discharging it directly into the environment. This reduces freshwater demand and pollution simultaneously. The stem describes using treated wastewater for irrigation or landscaping,which is a classic case of water reuse. Hence Option C is correct.

Option A:
Depletion refers to reducing the stock of a resource irreversibly. Using treated wastewater does not deplete water but actually conserves freshwater,so Option A is wrong.

Option B:
Mining water would imply extracting water from deep or fossil sources. It does not describe circulation of treated wastewater back into productive uses.

Option C:
Reuse involves giving water a second life in new applications after adequate treatment. It aligns perfectly with the practice highlighted in the question stem.

Option D:
Withdrawal refers to taking water from a natural source like a river or aquifer. The question focuses on using already collected and treated wastewater,so Option D is not appropriate.