Geography
Clouds and precipitation
Practice questions
Why may heavy rainfall not form when a cloud has many droplets but the droplets are very small?How can the presence of water droplets and ice crystals in mixed clouds affect precipitation?If the leeward slope remains dry after heavy rain on the windward slope this is the result of which combined process?If drops fall from a cloud but dry before reaching the ground what condition does this show?What is the most important dynamic condition for hail formation in a cumulonimbus cloud?What is the direct effect of intense surface heating in convectional rainfall?Why will precipitation not occur if cloud droplets do not become sufficiently large?Why do cirrus clouds bring little precipitation to the ground despite being high?How can vertical temperature affect the form of precipitation?Why can cloud droplet size remain small when condensation nuclei are very numerous?If a cloud is dense but updrafts are weak why will hail chance decrease?Which is the correct sequence in orographic rainfall?When moist sea air strikes a coastal mountain where is heavy rainfall more likely?What is the most important difference between cloud droplets and raindrops?If ice crystals form aloft and completely melt while descending what will reach the ground?Which condition is most necessary for cumulus to develop into cumulonimbus?If a cloud has ice crystals in its upper part and liquid droplets in its lower part what is the main reason?Which droplet feature most helps increase rainfall intensity?If condensation occurred in a cloud but droplet growth did not occur what result is likely?Why are cirrus clouds sometimes considered indicators of weather change?