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Ch15

Study Guide

QuestionAnswer
. List the examples of local winds Land and sea breeze
What are auroras and where are they found? shimmering lights
. Our ozone layer absorbs which type of harmful radiation from the sun? UV or ultraviolet
How much oxygen and carbon dioxide is found in our air? Oxygen is 21% and carbon dioxide is less than 1%
Which global wind blows away from the poles to the west? polar easterlies
What are the 2 most abundant gases found in the air? oxygen and nitrogen
Describe air pressure. Is the measure of the force with which air molecules push on a surface.
What happens to air pressure as altitude increases? As altitude increase air pressure decreases.s
Describe jet streams. Narrow belts of high-speed winds that blow in the upper troposphere and lower stratosphere.
What is the greenhouse effect? The process by which gases in the atmosphere absorb thermal energy
. Explain the 3 ways that heat is transferred. Radiation and conduction and convection
Where do trade winds flow toward? To the equator
What does the Coriolis Effect make the winds do? Curve
Describe the doldrums. Trade wind meet on the equator and very light wind dull
What is the ozone layer? Where is it found? Found in the Stratosphere, layer of oxygen that absorbs most of sun’s UV rays
Describe the thermosphere. Uppermost layer of the atmos. Temp. inc. due to solar radiation. Aurora Borealis occurs here.
What is the most common atmospheric gas? Nitrogen
What parts of the earth cools off faster and heats up faster? What does this unequal heating create? cools and heats faster and then creates wind.
What is smog? Sunlight reacts with ozone and exhaust.
Describe the movement of convection currents. Cold sinking and dense air pushes warm less dense air. which continues over and over again
Which instrument measures air pressure? barometer
What is significant about the troposphere? weather
What kind of ways have humans created air pollution? Fossil fuels and exhaust
What is another name for the distance above sea level? Elevation and altitude
What are global winds? Convection cells at every 30 degrees latitude. Wind that blow long distances are areas.
What does the name of a wind tell you? Tells you which direction it came from
How much of the sun’s energy actually reaches the Earth? 2 billionth
What property are the layers of the atmosphere based on? temperature
Which calm area is located around 30 degrees north and south latitude? Horse latitudes
What is the atmosphere? Layer of gases that surround the earth from uv rays and objects.
List the 3 global winds and the 2 calm areas Global Winds: polar easterlies and westerlies and trade winds Clam areas: doldrums and horse latitudes
What is global warming? An increase in average global temperature.
If air mass increases what happens to density? Air mass increases the density increases also.
What type of winds blow over short distances? Local winds
How are all winds created? Unequal heating of the earth's surface
Created by: chasenaenae.com