Part A What type of pressure system is over 1 ? What type of pressure system is over 2? What type of front is being pointed out at 3?
We have generally tow kinds of air pressure produced.
The high pressure zone and the low pressure zone. In a high pressure zone the strong wind moves outward to the center of the high pressure zone.
In the low pressure zone the strong wind moves outward from the center of the low pressure zone. Earth's surface is heated by the heat of the surrounding air. The surrounding is air heated and the air expands and moves up.
Moist and warm air rises and cools down to form clouds. This causes much cloud cover above a low pressure zone.
Cold and dry air descends to the surface in the high pressure zone. We don't have any clouds above a high pressure zone.
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