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D - Science - Unit 7
Chapter - Air Masses & Fronts
| Question | Answer |
|---|---|
| What are the 4 types of air masses? | Maritime Tropical, Maritime Polar, Continental Tropical & Continental Polar |
| Where does a maritime tropical air mass form? | form over tropical oceans |
| What is the temperature and humidity of a maritime tropical air mass? | warm, humid air masses |
| Where does a maritime polar air mass form? | form over the icy cold North Pacific and North Atlantic oceans |
| What is the temperature and humidity of a maritime polar air mass? | cool, humid air masses |
| When & where does a continental tropical air mass form? | form mostly in summer over dry areas of the Southwest region of the US and northern Mexico |
| What is the temperature and humidity of a continental tropical air mass? | hot, dry air masses |
| Where does a continental polar air mass form? | form over central and northern Canada and Alaska |
| What is the temperature and humidity of a continental polar air mass? | cold, dry air masses |
| In the continental US, what moves air masses? | prevailing westerlies and jet streams |
| What are the 4 types of fronts? | cold, warm, stationary & occluded |
| How does a cold front move and what kind of weather does it produce? | it moves quickly and causes abrupt weather changes, which can produce thunderstorms |
| How does a warm front move and what kind of weather does it produce? | it move slowly, so weather may be rainy or cloudy |
| What kind of weather does a stationary front produce? | produces rain, snow, fog, or clouds |
| What kind of weather does a occluded front produce? | produces clouds, rain, or snow |
| The characteristics of an air mass depend on what? | the temperatures and moisture content of the region over which the air mass forms |
| What type of air has a higher air pressure? | cold, dense air |
| What affects air pressure? | temperature |
| What type of air has a lower air pressure? | warm, less dense air |
| Whether an air mass is humid or dry depends on what? | where it forms, water or land |
Created by:
lprinke
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