Geography
Humidity, evaporation, and condensation
Practice questions
When can surface temperature be more important than air temperature in dew formation on grass?Why is a larger open water surface area important for evaporation?If morning air is cool and humid but afternoon air feels warm and dry, what may be the main reason?What is the scientific explanation for air feeling sticky before rain?Why does condensation release heat while evaporation absorbs heat?If relative humidity is low, why is soil kept in sunlight more likely to dry quickly?Why is it wrong to treat relative humidity as only the actual amount of water vapour?Why does the chance of cloud formation increase when moist air rises?What condition allows warm moist air over a cold surface to first condense and then form visible droplets?Which is the most correct conclusion for understanding humidity, evaporation and condensation together?If air shows a very small difference between dry-bulb and wet-bulb temperatures, what can be concluded about humidity?When wet-bulb depression is large, what is the correct conclusion about evaporation and humidity?Why can two unsaturated air masses sometimes form fog after mixing?If rising air becomes saturated, why does further cooling become slower than the dry rate?Why can dew point be a better indicator of mugginess than (RH) in meteorology?If energy is limited in evaporation, why can the rate remain limited even with a large humidity deficit?How can increasing water vapour in air affect cloud formation height?If cold air collects in a valley at night and moisture is sufficient, what is most likely to form?Why can evaporation from saline water be slightly lower than from pure water?Why can droplets remain very small even when condensation nuclei are abundant?