Which one of the following statements is correct?
- (a)Cirrus clouds are composed of ice crystals
- (b)Cirrus clouds exhibit a flat base and have the appearance of rising domes
- (c)Cumulus clouds are white and thin and form delicate patches and give a fibrous and feathery appearance
- (d)Cumulus clouds are classified as high clouds
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Official answer(a) Cirrus clouds are composed of ice crystals