Global air circulation

Which global winds blow from 30^o latitude in both hemispheres almost to the equator?

• easterlies
• westerlies
• trade winds
• the doldrums

What is the fundamental cause of air circulation in Earth's atmosphere?

• ocean currents
• Earth's gravity
• energy from the sun
• Earth's magnetic field

Which statement best describes the moving air?

• Air particles are spreading further apart
• Warm air is pushing cool air downward
• Air particles are being heated by the sun
• Cool air is causing an area of high pressure

The wind in a certain area is blowing from east to west. Which conclusion is most supported by this fact?

• the west is experiencing lower air pressure than the east
• the west is experiencing higher air pressure than the east
• the west is experiencing lower air temperature than the east
• the west is experiencing higher air temperature than the east

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

Which of the following is NOT an example of winds transferring matter?

• Dandelion seeds blowing away from the parent plant
• Dust storms moving dust particles across the land
• Sand from the Sahara desert carried by wind to the Amazon rainforest
• Warm air rising at the equator

How is air particle density related to air pressure?

• less dense air has a lower temperature
• less dense air has a higher pressure
• more dense air has a lower pressure
• more dense air has a higher pressure

Which of the following explains where high and low pressure are located in this diagram?

• the cool air sinks creating high pressure and warm air rises creating low pressure
• the cool air rises creating high pressure and warm air sinks creating low pressure
• the cool air sinks creating low pressure and warm air rises creating high pressure
• the cool air rises creating low pressure and warm air sinks creating high pressure

Why would the wind blow from the land (cool air) to the water (warm air)?

• the wind always blows low to high pressure
• the wind always blows warm to cool
• the wind always blows from high to low pressure
• the wind always blows from the land

What is the Coriolis effect?

• wind curves across Earth's surface because of Earth's magnetism
• global wind patterns occur because of rising and sinking air
• global wind patterns occur because of high and low pressure
• wind curves across Earth's surface because of Earth's rotation