Which map best represents the surface wind pattern associated with high-pressure and low-pressure systems in the Northern Hemisphere?

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An air mass entering Alaska from the northern Pacific Ocean would most likely be labeled on a weather map as

• cP

• cT

• mP

• mT

Which weather-station model shows an air pressure of 993.4 millibars?

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Base your answer on the weather map below. The map shows a low-pressure system and some atmospheric conditions at weather stations A, B, and C.

Which cross section best represents the air masses, air movement, clouds, and precipitation occurring behind and ahead of the warm front located between stations A and B?

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Base your answer on the cross section below and on your knowledge of Earth science. The cross section shows the general movement of air within a portion of Earth's atmosphere located between 30° N and 30° S latitude. Numbers 1 and 2 represent different locations in the atmosphere.

Which map best shows the surface movement of winds between 30° N and 30° S latitude?

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Base your answer on the weather map below and on your knowledge of Earth science. The weather map shows a typical low-pressure system and associated weather fronts labeled A and B. The L indicates the center of the low-pressure system. A few New York State cities are shown. Symbols cP and mT represent different air masses. The wind direction at Utica and Rochester is shown on the station models.

Which front symbols are drawn correctly, based on the air masses shown?

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Differences in air pressure are caused by...?

• Differences in the earths rotation

• Differences in temperature

• Differences in rainfall

• Differences in sea level

Winds move from...

• high pressure to low pressure

• low pressure to high pressure

True or false - warm air rises, cools and condenses and forms clouds, this is called low pressure

• True

• False

Why are there global winds?

• because the cold air sinkes from the poles to the equator
• because the earth is rotating from east to west
• because the sun heats the air at the equator more than anywhere else on earth