The fronts that are shown in the images in the question are: Item A shows a stationary front, and item B shows an occluded front.
What is a stationary front?
A stationary front has to do with the still movement that occurs between a warm front and a cold front as they meet.
What is an occluded front?
This is the type of weather that is formed during the process of cyclogenesis. It happens when a cold front takes over a warm front during the existence of a cyclone.
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