Fixing water leakage in school is an example of what?

Correct answer: Water conservation

Water conservation means protecting water supplies and avoiding unnecessary loss, misuse or contamination. A leaking tap or pipe can release usable water even when nobody needs it, so repairing the leak stops that avoidable loss and makes the school’s water use more efficient. Thus, option B is correct. Noise pollution concerns excessive or harmful sound; plastic use concerns a material choice; and fuel wastage concerns petrol, diesel or other energy sources. Those distractors do not describe the immediate environmental benefit of repairing a water leak. Other conservation actions include closing taps properly, using water carefully and collecting rainwater where suitable.