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Ch.15

Study Guide

QuestionAnswer
List the examples of local winds. Mountain breezes, valley breezes and sea breezes
What are auroras and where are they found? a light caused by the sun's radiation and are found at the poles
Our ozone layer absorbs which type of harmful radiation from the sun? It absorbs UV radiation (ultraviolet radiation)
Which global wind blows away from the poles to the west? Polar easterlies
How much oxygen and carbon dioxide is found in our air? Oxygen:21% Carbon dioxide:Less than 1%
What are the 2 most abundant gases found in the air? Nitrogen and Oxygen
Describe air pressure The air above us that pushes down on the earths surface
What happens to air pressure as altitude increases? It decreases
Describe jet streams. Its the weight of tiny particles of air or air molecules!
What is the greenhouse effect? The trapping of the sun's warmth in a planet's lower atmosphere
Explain the 3 ways that heat is transfered Radiation,convection,and conduction
where do trade winds flow towards? The equator
What does the Coriolis effect make the wind do? Apparent curving
Describe the doldrums It is very calm and dull
What is the ozone layer? Where is it found? It absorbs most of the ultraviolet radiation ( UV) reaching the earth from the sun.It is located in the stratosphere
Describe the thermosphere. The thermosphere is where all of the planes and helicopters fly
What is the most common atmospheric gas? Nitrogen gas
What parts of the earth cools off faster and heats up faster? What does this unequal heating create? Land does and unequal heating causes low density and high air pressure
What is smog? Smog is the mixture of smoke and fog
describe the movement of convection currents
Which instrument measures air pressure?
What is significant about the troposphere?
What kind of ways have humans created air pollution?
What is another name for the distance above sea level?
What are global winds?
What does the name of a wind tell you?
How much of the sun's energy actually reaches the Earth?
What property are the layers of the atmosphere based on?
Which calm area is located around 30 degrees north and south latitude?
What is the atmosphere? The atmosphere is an invisible mix of gases that surround the earth
What is global warming?
If air mass increases what happens to density?
What type of winds blow over a short distance?
How are all winds created?
Created by: Nautica Simms