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chapter 15
study guide
| Question | Answer |
|---|---|
| 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
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