Why may wet clothes dry more slowly in a closed room than in an open field?

Correct answer: Air circulation is lower in a closed room

Direct answer: A, air circulation is lower in a closed room. Water first evaporates from the wet clothes and enters the nearby air. In a closed room, this nearby air can quickly become humid because the moist air is not replaced efficiently. Air that already contains much water vapour has less capacity to accept more, so evaporation from the clothes slows. In an open field, moving air carries the moist layer away and brings relatively drier air into contact with the clothes, allowing evaporation to continue more rapidly. B is wrong because water vapour does not immediately and inevitably condense simply because a room is closed. C is wrong because evaporation still occurs in an open field; air movement usually speeds it up. D is wrong because enclosing a room does not raise water’s freezing point. Other factors such as temperature, sunlight, humidity, and fabric also matter. Memory cue: moving air removes moisture and speeds drying.