The weather behind a cold front is dominated by

mixed air mass

cold air mass

warm air mass

ANSWER:

The weather behind a cold front is dominated by cold air mass.

EXPLANATION:

Clad mass air works in the form of removing or replacing the warm air mass which is working to give rise to the cold front. The collection of air masses is not combined or connected as they have various temperature in them. It can be explained as the hot air has the tendency to have lower density when compared with cold air. In these situation, clouds can be taken as the perfect example. These are all the example of the air which are cooled and which are warm.

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