Question

what is low pressure trough​

Answer 1

Answer:

A trough is an enlongated region of relatively low atmospheric pressure , often associated with fronts. Trough may be at the surface ,or aloft ,or both under various conditions. Most trough brings clouds, showers, & wind shift, particularly following the passage of the trough

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Answer 2

Answer:

Low pressure means low amount of air that occurs in the region of high temperature and the hot air becomes light and rises up and the side air that is cold fills up the space of that hot air that already rised up .

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