Unit 4 Lesson 1 Winds in the Atmosphere

Refer to the diagram of winds and currents to answer the question. Which of the following is the direct source of these winds and currents?

• the uneven heating of Earth by the sun

• the Coriolis Effect

• the rotation of Earth

• the sun is shining and warming the air from the right side of the diagram

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Which of the following is most responsible for the moving bands of air around Earth that are shown in the picture?

• conduction

• convection

• Coriolis effect

• greenhouse effect

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Which of the following describes the general pattern of winds near the equator?

• Winds are generally weak because the equator is a region where low and high air pressure atmospheric bands come together.

• Winds are generally weak because the equator is a region of mostly low air pressure.

• Winds are generally strong because the equator is where low and high air pressure atmospheric bands come together.

• Winds are generally strong mostly high air pressure.

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The air above Earth's surface is at different temperatures. What is responsible for this difference in temperature?

• the sun

• the moon

• landforms

• Earth's rotation

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The Coriolis Effect greatly affects the paths of air circulation on Earth. What causes the Coriolis Effect?

• the sun

• the moon

• Earth's rotation

• Earth's revolution

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Air rising and sinking in Earth's atmosphere forms a pattern of smaller convection cells. These convection cells create both high and low pressure belts. Where in the diagram are the high-pressure belts?

• A, B, C, D

• A, C, E, G

• D, E, F, G

• B, C, D, E, F

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Some characteristic types of wind result where global pressure belts meet. Which of the following is a zone of weak, variable winds located at 30°N and 30°S latitude?

• jet streams

• local winds

• the doldrums

• the horse latitudes

Winds may be named for their location or for the direction from which they blow. Which winds blow form 30° latitude in both hemispheres almost to the equator?

• easterlies

• westerlies

• trade winds

• the doldrums

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Air rising and sinking in Earth's atmosphere forms a pattern of smaller convection cells. These convection cells create both high and low pressure belts. Where in the diagram are the low-pressure belts located?

• B, D, F

• A, D, G

• C, D, E

• D, E, F, G

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Land and water absorb and release the sun's heat in different ways. One result of this is a sea breeze. Which statement is true of sea breezes?

• They originate in the day and blow toward the land.

• They originate in the day and blow toward the water.

• They originate in the evening and blow toward the land.

• They originate in the evening and blow toward the water.

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