Warm front results in ___ types of clouds.
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AS
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ST
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CI
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all of the above
D
Correct answer
Explanation
Warm fronts produce a characteristic sequence of clouds as they approach. The progression typically includes high cirrus (CI) clouds first, followed by middle-level altostratus (AS), and finally low stratus (ST) clouds as the front nears. This systematic cloud development occurs because the warm air gradually overrides the retreating cold air, creating clouds at different atmospheric levels over time.