Geography
Humidity, evaporation, and condensation
Practice questions
Why do fog and cloud appear different even though they are basically similar?If relative humidity is (80%), what does it correctly mean?Why can cloud formation become difficult when condensation nuclei are scarce?Why is relative humidity very low in hot desert air even when actual vapour is low?Dew forms on grass on a cold morning but appears less on nearby dry soil. What is a likely reason?Why can evaporation be called an invisible cooling process?How can condensation of water vapour increase atmospheric instability?At the same temperature, why is maritime air generally more humid than continental air?Why can stronger wind increase evaporation from an open water body?Why can cold air become saturated quickly even with little water vapour?What is the main physical difference between dew and frost formation?Clothes dry slowly in humid weather. What is the atmospheric reason?Which ratio is shown by the formula of relative humidity?Under constant temperature, why does relative humidity rise when water vapour increases?Why is local evaporation likely to increase when soil moisture is high?Which combined term best expresses moisture addition to the atmosphere from vegetation and evaporation?What can be one reason for dense fog in urban areas?If air descends down a slope and warms, what will happen to relative humidity?Why must rising air reach the dew point before cloud formation?How can cold air moving over a water body create evaporation and fog conditions?