Weather 2

Why do hurricanes die out soon after hitting landfall?

• Cloud types chage

• warm water no longer feeds them

• rotation of the storm changes direction

Which of these actions causes wind?

• rotation of Earth on its axis

• movement of air from water to land

• uneven heating of Earth’s surface

• air passing Earth as it revolves around the Sun

Why do scientists collect data about the amount of water vapor in the air?

• to determine humidity levels

• to monitor evaporation rates

• to predict wind speed and direction

• to determine atmospheric pressure

Based on the information in the table, in which city will it most likely rain?

• W

• X

• Y

• Z

Which instrument is used to determine air pressure?

• barometer

• anemometer

• psychrometer

• thermometer

Which best describes the effect of heavy cloud cover on temperatures at night?

• Temperatures will be cooler than expected.

• Temperatures will be warmer than expected

• Temperature will change frequently throughout the night.

• There will be no change in temperature throughout the night.

Which best describes the type of weather associated with low air pressure?

• clear and dry

• sunny and cold

• sunny with high winds

• cloudy with precipitation

Why do most storms move from the west coast of America to the east coast?

• El Niño

• La Niña

• Jet Stream

What impact does the Gulf Stream have on North Carolina’s coastal climate?

• The cold water from the Gulf Stream current cools the land.

• The warm water from the Gulf Stream current warms the land.

• The cold water from the Gulf Stream current decreases inland wind speeds.

• The warm water from the Gulf Stream current increases inland wind speeds.

Which is the best explanation for how air masses move across the United States?

• The prevailing westerlies move air masses from west to east across the United States but may be deflected by the jet stream.

• The trade winds move air masses from west to east across the United States.

• The jet stream moves air masses from the Pacific Ocean across the United States.

• The warm air of the Gulf Stream causes air masses to move from the Atlantic Ocean to the Pacific Ocean.