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Chapter 15
Study Guide
| Question | Answer |
|---|---|
| List the examples of local winds. | Sea breeze, land breeze, mountain breeze, valley breeze. |
| What are the auroras and where are they found? | Shimmering lights found in the ionosphere (thermosphere) |
| Our ozone layer absorbes which type of harmful radiation from the sun? | UV radiation |
| How much oxygen and carbon dioxide is found in our air? | Oxygen:21% Carbon Dioxide: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 messure of the force with which air molecules push on a surface. |
| What happens to air pressure as altitude increases? | The air pressure decreases. |
| Describe jet streams. | Jet streams are narrow belts of high speed winds that blow in the upper troposphere and lower stratosphere. |
| What is the greenhouse effect? | The greenhouse effect is the process by which gases in the atmosphere absorb thermal energy. |
| Explain the 3 ways that heat is tranfered. | Convection, radiation, and conduction. |
| Where do trade winds flow toward? | The equator. |
| What does the Coriolis Effect make the winds do? | They make the winds flow in curved paths rather than in straight lines. |
| Describe the doldrums. | Trade winds from the northern and southern hemispheres meet in an area around the equator called the doldrums. |
| What is the ozone layer? Where is it found? | It is a layer in the atmosphere that absorbs harmful UV rays from the sun. It is found in the stratosphere. |
| Describe the thermosphere. | Temperature increases 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 fastest; creates winds |
| What is smog? | A mixture of smoke and fog. |
| Describe the movement of convection currents. | |
| Barometer | |
| What is significant about the troposphere? | Weather occurs. |
| What kind of ways have humans create air pollution? | Burning fossil fuels- exhaust, chemicals. |
| What is another name for the distance above sea level? | Altitude or elevation. |
| What are global winds? | The combination of convection cells found at every 30 degrees of latitude and the Coriolis Effect produces patterns of air circulatin called global winds. |
| What does the name of a wind tell you? | It tells you were 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 area is located around 30 degrees north and south latitude? | Horse Latitudes |
| What is the atmosphere? | The atmosphere is a mixture of gases that surrounds the Earth. |
| List the 3 global winds and the 2 calm areas. | Global Winds- Polar Easterlies, Westerlies, and Trade Winds Calm Areas- Doldrums and Horse Latitudes |
| What is global warming? | An increase in average temperature on Earth. |
| 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 Earth's surface. |
Created by:
peytonuehlin
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