Question 1

air pressure

Accepted Answer

The measure of the force with which air molecules push on a surface

Question 2

doldrums

Accepted Answer

a frequently windless area near the Equator

Question 3

Hadley cell

Accepted Answer

a large-scale atmospheric convection cell in which air rises at the equator and sinks at medium latitudes, typically about 30° north or south.

Question 4

Ferrel Cell

Accepted Answer

a weak, large-scale atmospheric convection cell found in mid-latitude climate zones

Question 5

Polar Cell

Accepted Answer

the large atmospheric circulation cell that occurs between 60 and 90 degrees latitude in each hemisphere

Question 6

high pressure area

Accepted Answer

a region where the atmospheric pressure at the surface of the planet is greater than its surrounding environment; usually associated with dry weather

Question 7

low pressure area

Accepted Answer

a region where the atmospheric pressure at the surface of the planet is lower than that of its surrounding environment; usually associated with stormy weather

Question 8

polar easterlies

Accepted Answer

prevailing, cold winds that blow from the east to the west near the North Pole and South Pole

Question 9

prevailing winds

Accepted Answer

global winds that blow constantly from the same direction

Question 10

trade winds

Accepted Answer

prevailing winds that blow from east to west from 30 degrees latitude to the equator in both hemispheres

Question 11

westerlies

Accepted Answer

prevailing winds that blow from west to east between 30 degrees and 60 degrees latitude in both hemispheres

Question 12

thermohaline

Accepted Answer

movement of ocean water caused by density difference brought about by variations in temperature and salinity

Question 13

salinity

Accepted Answer

a measure of the amount of dissolved salts in a given amount of liquid

Question 14

concentration

Accepted Answer

the spread of something over a given area.

Question 15

troposphere

Accepted Answer

the lowest layer of the atmosphere

Question 16

atmosphere

Accepted Answer

a mixture of gases that surrounds a planet or moon.

Question 17

upwelling

Accepted Answer

the movement of deep, cold, and nutrient-rich water to the surface

Question 18

circulation

Accepted Answer

short-term, repetitive, or cyclical movements that recur on a regular basis

Question 19

Coriolis effect

Accepted Answer

the effect of Earth's rotation on the direction of winds and currents

Question 20

jet stream

Accepted Answer

a high-speed high-altitude airstream blowing from west to east near the top of the troposphere

Question 21

wind

Accepted Answer

The horizontal movement of air from an area of high pressure to an area of lower pressure

Question 22

gyre

Accepted Answer

the large, circular surface-current pattern found in each ocean

Question 23

tides

Accepted Answer

the regular rise and fall of the ocean's surface influenced by the moon's gravity pulling on earth

Question 24

density

Accepted Answer

the degree of compactness of a substance.

Question 25

current

Accepted Answer

a steady, predictable movement of fluid through another fluid

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