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Ch. 15
study guide
| Question | Answer |
|---|---|
| List examples of local winds | land breezes and sea breezes. |
| What are auroras and where are they found? | ions formed into shimmering light. Found in polar areas. |
| Our ozone layer absorbs which type of harmful radiation from the sun? | ultraviolet rays. |
| How much oxygen and carbon dioxide is found in our air? | 20% oxygen 1% carbon dioxide. |
| Which global wind blows away from the pole to the west? | westerlies. |
| What are the 2 most abundant gases found in the air? | nitrogen and oxygen. |
| Describe air pressure. | measure of force when molecules push on surface. |
| What happens to air pressure as altitude increases? | pressure decreases. |
| Describe the thermosphere. | highest layer of atmosphere. |
| What is the greenhouse effect? | gases in the atmosphere radiate back to Earth. |
| Explain the 3 ways that heat is transferred. | radiation, conduction, convection. |
| Where do trade winds flow forward? | |
| What does the Coriolis Effect make the winds do? | curve. |
| Describe the doldrums. | dry areas with little wind and low air pressure. |
| What is the ozone layer? Where is it found? | the ozone layer is a layer of protective gases that block Earth from harmful rays from the sun. Found in the atmosphere. |
| Describe jet streams. | narrow belts of high speed winds. |
| 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 faster than water. Causes local winds. |
| What is smog? | smog is fog and smoke. |
| Describe the movement of convection currents. | rise and fall |
| Which instrument measures air pressure? | barometer. |
| What is significant about the troposphere? | where people live. |
| What kind of ways have humans created air pollution? | exhaust, burning fossil fuels, etc. |
| What is another name for distance above sea level? | altitude or elevation. |
| What does the name of a wind tell you? | the direction they are going |
| How much of the sun's energy actually reaches the Earth? | 50% |
| What property are the layers of the atmosphere based on? | pressure |
| Which calm area is found around 30 degrees north and south latitude? | horse latitudes. |
| What is the atmosphere? | mixture of gases that surrounds the earth. |
| List the three global winds and the 2 calm areas. | global winds: Westerlies, Easterlies, Trade Winds. Calm: Doldrums, Horse Latitudes. |
| What is global warming? | increase in average global temp. |
| If air mass increases what happens to density? | decreases. |
| what type of wind blow over short distances? | |
| How are all winds created? | differences in air pressure. |
Created by:
charlotteabc123
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