Cumulus clouds are known as “fair weather” clouds. They look like fluffy, white cotton balls with flat bases and are typically seen on sunny days. They form through light convection; as long as they stay small and separated, they indicate stable weather. However, if they begin to grow vertically, they can develop into storm clouds. ANSWER: (C) Cumulus
Which cloud type is known as ‘Fair Weather’ clouds? (A) Cumulonimbus (B) Stratus (C) Cumulus (D) Cirrus
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Cumulus clouds form when warm air rises and cools to its dew point, causing water vapor to condense. The flat base of the cloud shows the altitude where condensation begins. In “fair weather” conditions, these clouds remain low and do not have much vertical development. They are usually widely spaced, allowing plenty of sunlight to reach the ground. If the atmosphere becomes more unstable, these small clouds can swell into “Cumulus Congestus” and eventually “Cumulonimbus,” which are associated with heavy rain and lightning. Thus, small cumulus clouds are the hallmark of a pleasant, stable day.
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