Discussion :: Atmosphere
- Which one of the following statements is correct?
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A.
Cirrus clouds are composed of ice crystals |
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B.
Cirrus clouds exhibit a flat base and have the appearance of rising domes |
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C.
Cumulus clouds are white and thin, and form delicate patches and give a fibrous and feathery appearance |
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D.
Cumulus clouds are classified as high clouds |
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Answer : Option A
Explanation :
The most common form of high-level clouds are thin and often wispy cirrus clouds. Typically found at heights greater than 20,000 feet (6,000 meters), cirrus clouds are composed of ice crystals that originate from the freezing of supercooled water droplets. Cirrus generally occur in fair weather and point in the direction of air movement at their elevation.
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