How are weather fronts important to describing air masses?

Explanation:

The movements and collisions is what causes weather fronts this is the main cause. When a cold front or cold occlusion goes under a warm, moist air mass, the warm air rises and rain clouds or even thunderstorms result.

Air masses over water are called maritime air masses, while air masses over land are called continental air masses. The borderline between two air masses is called front. Cold fronts move faster than warm fronts and cause rapid formation of xlouds ,leading to violent storms and heavy rain.

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explanation:

the correct option is option d