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chapter 15

study guide

QuestionAnswer
List the examples of local winds. land and sea breezes
What are auroras and where are they found? auroras are little charge particles and they are found in the ionosphere
Our ozone layer absorbs which type of harmful radiation from the sun? u.v radiation
How much oxegyn and carbon dioxide is found in our air? carbon dioxide-less than 1 and oxegyn-21
which global winds blow away from the poles to the west?? polar easterlies
what are the 2 most abundant gases found in the air? nitrogyn and oxegyn
describe air pressure. the measure of the force with which air molecules push on a surface
what happens to air pressure as altitude increases? It decreases
describe jet streams. a narrow band of strong winds that blow in the upper troposphere
what is the greenhouse effect? the warming of the surface and lower atmosphere of Earth that occurs when water vapor, carbon dioxide, and other gases absorb and reradiate thermal energy
explain the 3 ways that heat is transfered. conduction, radiation, and convection
where do trade winds flow toward? toward the equador
what does the coriolis effect make the winds do? go in a circular movement
describe the doldrums. calm, and weak winds
what is the ozone layer? where is it found? the ozone layer is a protective sheild that protects us from UV rays. found in the stratosphere
describe the thermosphere. hotest layer
what is the most common atmospheric gas? nitrogyn
what parts of the earth cools off faster and heats up faster? what does this unequal heating create? the land
what is smog? mix between smoke and fog. car exhaust and the ozone layer
describe the movement of convection currents. With a heat sorce, cold sinking dense air pushes warm light, less dense air
which instrument measures air pressure? barometer
what is signifigant about the troposphere? weather occurs here
what kind of ways have humans created air pollution? burning fossil fuels, exhaust, and chemicals
what is another name for the distance above sea level? elavation, or altitude
what are global winds? combination of convection cells at every 30 degrees latitude
what does a name of a wind tell you? the wind name tells you where the wind is coming from
how much of the sun's energy actually reaches the earth? billionth
what proberty are the layers of the atmosphere based on? tempature
which calm area is located around 30 degrees north and south latitude? horse latitude
what is the atmosphere? layer of gases that surrounds the earth and protects us from u.v rays
list the 3 global winds and the 2 calm areas global winds, pola easterlies, westerlies, trade winds, calm areas, doldrums, and horse latitudes
what is global warming? the increase in average tempature on earth
if air mass increases, what happens to density? as air mass increases, density increases
what types of winds blow over a short distance? local winds
how are all winds created? unequal heating of the earths surface
Created by: appleseed2001