Global Winds

Sammy feels an ocean breeze as he plays volleyball at the beach. Why do ocean winds or sea breezes blow toward shore during the day?

• Earth's rotation causes air to blow toward land.

• Air over the beach heats up, rises and is replaced by ocean air.

• The energy of the ocean storms push air toward shore.

• Ocean air is less dense, so it moves in to replace air over the land.

Where does the initial source of energy come from that creates winds?

• the moon
• the sun
• the Earth's surface
• the rotation of the Earth

Which statement correctly describes the properties of cold air?

• less dense and less pressure than warm air
• more dense and more pressure than warm air
• more dense and less pressure than warm air
• less dense and more pressure than warm air

The Coriolis effect causes ___________.

• the Earth to rotate on its axis
• continental deflection
• global winds and surface currents to move in a curved path instead of a straight line
• global winds and deep ocean currents to move in a curved path instead of a straight line.

How do differences in air pressure affect the movement of air?

• Air always moves from areas of high pressure to areas of low pressure.
• Air always moves from areas of low altitudes to high altitudes.
• Air always moves from areas of low pressure to areas of high pressure.
• Air always moves from east to west.

_{Which diagram shows the formation of a land breeze?}

• diagram Y
• diagram X
• neither 
• both

Which statement correctly defines wind?

• Wind is the movement of air from areas of low pressure to areas of high pressure
• Wind is the movement of air to a colder area in the atmosphere.
• Wind is the movement of air from areas of high pressure to areas of low pressure.
• Wind is the movement of air pushed around and bouncing off Earth's surface.

In which direction do prevailing westerlies flow?

• from east to west
• from west to east
• from north to south
• from south to north

What is the initial source for global winds and convection in the atmosphere? 

• continental deflection
• the rotation of the Earth
• Moon's gravity
• unequal heating of the Earth by the sun

Which global winds are found at the poles? 

• Polar Westerlies
• Prevailing Easterlies
• Polar Easterlies
• Trade Winds