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Ch. 15
Study Guide
| Question | Answer |
|---|---|
| List the examples of local winds. | Land breeze and sea breeze |
| What are auroras and where are they found? | a natural electrical phenomenon characterized by the appearance of streamers of reddish or greenish light in the sky. They are only found in the north and south poles |
| 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? | O=21% and CO2=1% |
| Which global wind blows away from the poles to the west? | Easterlies |
| What are the two most abundant gases found in the air? | Oxygen and nitrogen |
| Describe air pressure. | is the pressure created by air due to gravity |
| What happens to air pressure as altitude increases? | it decreases |
| Describe jet streams. | narrow belts of high speed winds |
| What is the greenhouse effect? | The trapping in of harmful gases |
| Explain the three ways that heat is transferred. | conduction, convection, and radiation |
| Where do trade winds flow toward? | they blow towards the equator |
| What does the Coriolis effect make the winds do? | it deflects the winds to the right in the northern hemisphere and to the left in the southern hemisphere |
| Describe the doldrums. | they are dull and sluggish and live around the equator and where trade winds meet |
| What is the ozone layer? Where is it found? | the portion of the atmosphere that contains high levels of the oxygen molecule ozone |
| Describe the thermosphere. | layer of earths atmosphere drectly above mesosphere and directly below exosphere |
| What is the most common atmospheric gas? | nitrogen |
| What parts of the earth heats up faster and cools off faster? What does this unequal heating create? | soil of the earth/ |
| What is smog? | mixture of smoke and fog |
| Describe the movement of convection currents. | it rises and then goes back down |
| Which instrament measures air pressure? | barometer |
| What is signifacant about the troposphere? | we live in it and it gives us the oxygen to breathe |
| What kind of ways have humans created air pollution? | burning fossil fuels, producing chemicals, and exhaust from cars |
| What is another name for the distance above sea level? | altitude and elevation |
| What are global winds? | winds that blow all around the globe from different directions |
| What does the name of a wind tell you? | what direction it blows 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? | it is a mixture of gases around the earth or other planets |
| List the 3 global winds and the 2 calm areas. | polar easterlies, westerlies, and trade winds/ horse latitudes and doldrums |
| What is global warming? | the warming up of an area unexpectedly around the globe |
| If air mass increases what happens to density? | the density also increases |
| What type of winds blow over short distances? | local winds |
| How are all winds created? | differences in air pressure |
Created by:
puppy1234
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