Which option shows a condition that reduces evaporation?

Correct answer: High humidity and low temperature

Correct answer: C. Evaporation is the change of liquid water into water vapour. It becomes faster when the water receives more energy, when wind removes moist air from above the surface, and when the surrounding air is relatively dry. High humidity means that the air already contains considerable water vapour, so it has less capacity to accept additional vapour. Low temperature supplies less energy to water molecules, so fewer molecules escape from the surface. Thus high humidity combined with low temperature reduces evaporation. A increases evaporation through wind and heat. B favours evaporation because dry air can accept more vapour and an open surface is exposed. D also favours it through sunshine and dry air. Cue: humid air plus cool conditions slows evaporation.