Geography
Humidity, evaporation, and condensation
Practice questions
How are clouds visible even though water vapour is invisible?Why do salts remain behind during evaporation of salty seawater?What is the process by which dew quickly disappears in the afternoon?If air in a closed vessel becomes saturated, why is net evaporation from water surface limited?In which condition is fog formation most likely?What causes water to collect on leaves during a humid night in an agricultural field?If dew point is very low, what can be concluded about the air?Why is the contribution of tropical oceans to atmospheric water vapour large?How does escape of faster molecules from a water surface during evaporation affect temperature?If droplets form outside a cold bottle, what is the source of that water?What does absence of rainfall even at 100 percent relative humidity show?If moist air flows over cold land and fog forms, what is the correct sequence?What is the main analytical difference between relative humidity and absolute humidity?Why does sweat cool the body less in humid weather?How are evaporation and condensation complementary in the water cycle?How will low wind speed and high relative humidity together affect evaporation?If air rises in a mountain region but moisture is very low, why may cloud formation be limited?Which statement is most accurate about evaporation rate and air temperature?If visibility decreases in fog, what is the direct physical reason?Why is cooling of air often necessary before condensation of water vapour?