‘Mosquitoes breed on stagnant water and their larvae keep floating on water’.When oil is sprinkled on the stagnant water, it results in the drowning and death of the larvae.Which of the following is the reason behind death of larvae?

Answer: [A] Sprinkling of oil in water reduces surface tension of water

The property of the surface of the liquid to behave like an elastic membrane is called surface tension.The surface of a liquid resist an external force, due to the cohesive nature of its molecules.When oil is Sprinkled in water, it reduces surface tension of water, resulting in the drowning and death of the larvae.

This question is a part of GKToday's Integrated IAS General Studies Module