Homework 3.3

What is the cause of wind?

• uneven density of Earth's core

• rising and sinking ocean water

• uneven heating of Earth's surface by the Sun

• movement of pressure caused by global land

Cool, dense air ___.

• RISES

• SINKS

Warm, less-dense air from areas like the Equator form areas of _______ pressure.

• HIGHER

• LOWER

The warming and cooling of air produces "pressure belts" about every 30 degrees of latitude. These small circular patterns are called ___.

• circle belts

• red/blue loops

• high-lows

• convection cells

The Coriolis effect causes winds in the Northern Hemisphere to curve which direction?

• RIGHT-clockwise

• LEFT-counter-clockwise

Which global winds blow between the poles and 60 degrees latitude in BOTH hemispheres.

• trade winds

• westerlies

• polar easterlies

• doldrums

• horse latitudes

Which global winds blow between 30 degrees latitude and the Equator in BOTH hemispheres.

• trade winds

• westerlies

• polar easterlies

• doldrums

• horse latitudes

Which global winds blow between 30 and 60 degrees latitude in BOTH hemispheres.

• trade winds

• westerlies

• polar easterlies

• doldrums

• horse latitudes

Which global winds blow very little in BOTH hemispheres and are described at VERY calm areas. (Identify 2)

• trade winds

• westerlies

• polar easterlies

• doldrums

• horse latitudes

Which global winds were named because sailors relied on them to sail from Europe to the Americas.

• trade winds

• westerlies

• polar easterlies

• doldrums

• horse latitudes