Answer :
C. Is the closest answer... I agree with the other person
John saw the clouds because the warm, wet air in a low pressure system has risen up and cooled down. This is what will fall down as rain fall.
The cloud is normally seen when it is about to rain. Clouds are formed due to the condensation of water that has evaporated from the earth's surface.
When John stepped outside, he saw the clouds because the warm, wet air in a low pressure system has risen up and cooled down. This is what will fall down as rain fall.
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