Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Ch.15
Study Guide
| Question | Answer |
|---|---|
| List the examples of local winds. | land and sea breezes |
| What are the auroras and where are they found? | Shimmering lights found in the ionosphere. (thermosphere) |
| Our ozone layer absorbs which type of harmful radiation from the sun? | UV rays |
| How much oxygen and carbon dioxide is found in our air? | oxygen 21% and carbon dioxide 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? | 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? | air pressure decreases |
| Describe jet streams. | Narrow belts of high-speed winds that blow in the upper troposphere and lower stratosphere. |
| What is the greenhouse effect? | gases in the atmosphere absorb thermal energy |
| Explain the 3 ways that heat is transferred. | Convection-energy through heat or gas Radiation-electromagnetic waves; indirect Thermal Conduction- material/ direct contact |
| Where do trade winds flow toward? | both hemispheres blow 30 degrees latitude toward the equator |
| What does the Coriolis Effect make the winds do? | curving of winds and currents due to Earth's rotation |
| Describe the doldrums. | trade winds meet in an area near the equator; very light winds-dull |
| What is the ozone layer and where is it found? | The ozone layer is found in the stratosphere, and it is a layer of oxygen that absorbs most of the sun's UV rays. |
| Describe the thermosphere. | Uppermost layer of the atmosphere where temp. increase 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? | land cools and heats up fastest; creates winds |
| What is smog? | air pollution that is formed when the ozone and vehicle exhaust react to sunlight |
| Describe the movement of convection currents. | with a heat source cold air sinking dense air pushes warm light dense air- continues in a cycle |
| Which instrument measures air pressure? | barometer |
| What is significant about the troposphere? | we live here and it's where weather happens |
| What kind of ways have humans created air pollution? | car exhaust, burning fossil fuels, and deforestation |
| What is another name for the distance above sea level? | altitude and elevation |
| What are global winds? | Combination of convection cells at every 30 degrees latitude; winds that blow |
| What does the name of a wind tell you? | Wind name can tell you where the wind is coming from |
| How much of the sun's energy actually reaches 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 latitudes |
| What is the atmosphere? | mixture of gases that surround the Earth |
| List the 3 global winds and the 2 calm winds? | Global winds~Polar Easterlies, Westerlies, Trade Winds. Calm~Doldrums, Horse Latitudes |
| What is global warming? | an average increase in average global temperatures |
| If air mass increases what happens to density? | density decreases |
| What type of winds blow over short distance? | local winds |
| How are all winds created? | Unequal heating of the Earth's surface. |
Created by:
icecreamlover8
Popular Earth Science sets