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Ch.15

Study Guide

QuestionAnswer
List the examples of local winds. sea breeze and land breeze
What are auroras and where are they formed? A natural light display in the sky particularly in the high latitude regions and formed in the thermosphere.
Our ozone layer absorbs which type of harmful radiation from the sun? Ultraviolet radiation(U-V radiation)
How much oxygen and carbon dioxide is found in our air? o=21 percent CO2=1 pecent
Which global wind blows away from the poles to the west? polar easterlies
What are the 2 most abundant gases found in the air? nitrogen and oxygen
Describe air pressure. Air pressure is the measure of the force with which air molecules push on a surface.
What happens to air pressure as altitude increases? The air pressure is decreases as you go up.
Describe jet stream. The jet streams:narrow belts of high-speed winds that blow in the upper troposphere and lower stratosphere.
What is the greenhouse effect? The normal process by which heat is kept in the atmosphere by trapping the warmth of the sun
Explain the 3 ways that heat is transferred. Thermal conduction, Convection and Radiation
Where do trade winds flow toward? flow toward the equator
What does the Coriolis Effect make the winds do? Northern Hemisphere, winds traveling north curve to the east, and winds traveling south curve to the west
Describe the doldrums. Doldrums: they are the trade winds of the Northern and southern hemispheres that meet in an are around the equator
What is the ozone layer?Where is it formed? layer of the upper atmosphere. Temp. icreases due to solar radiation.
Describe the thermosphere. Thermosphere stands for heat,and the thermosphere is the sphere where temperatures are highest.
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? land cools off faster and heats up faster. The unequal heating is called global warming.
What is smog? It is a type of air pollution
Describe the movement of convection currents. warm air rises over the equator and moves toward the poles, the air begins to cool.
Which instrument measures air pressure? barometer
What is significant about the troposphere? That is where people live and weather occurs here
What kind of ways have humans created air pressure? burning fossil fuels, and exhaust from cars
What is another name for the distance between sea level? altitude or elevation
What are global winds? global winds:The combination of convection cells found at every 30 degrees of latitude and the Coriolis effect produces patterns of air circulation
What does the name of a wind tell you? which direction it is going in and what kind of wind
How much of the sun's energy actually reach the earth? 2 billionths
What property are the layers of the atmosphere based on? temperature
Which calm area is located around 30 degrees north and south latitude? horse latitude
What is the atmosphere? The atmosphere is a mixture of gases that surrounds Earth. This protects us from uv rays.
List the 3 global winds and the 2 calm areas. global winds:trade winds, polar easterlies, westerlies calm winds: horse latitude and doldrums
What is global warming? Such an increase in average global temperatures is called global warming.
If air mass increases what happens to density? density increases
What type of winds blow over short distances? local winds
How are all winds created? unequal heating of the earths surface
Created by: iceskating_puppy