| A | B |
|---|
| maratime | over oceans |
| continental | over land |
| tropical | near the equator, warm |
| polar | near the poles, warm |
| low lattitudes | latitude number near the equator |
| high lattitudes | latitudes near the poles |
| tropical maritime | warm humid air mass |
| polar maratime | cold humid air mass |
| tropical continental | warm dry air mass |
| tropical maritime | warm humid air mass |
| this means has lots of moisture | humid |
| this means has little moisture | arid |
| direction air moves | from high to low pressure |
| direction air doesn't tend to move | from low to high pressure |
| cirrus clouds | wispy high altitude clouds, don't bring rain |
| nimbostratus clouds | thick dark flat clouds that bring persistent rain |
| front | where two different kinds of air masses run into each other |
