| A | B |
| wind | the movement of air caused by differences in air pressure |
| coriolis effect | the apparent curving of the path of a moving object from an otherwise straight path due to the earth's rotation |
| polar easterlies | prevailing winds that blow from east to west between 60 degrees and 90 degrees latitude in both hemispheres |
| westerlies | prevailing winds that blow from east to west between 30 degrees and 60 degrees latitude in both hemispheres |
| trade winds | prevailing winds that blow from northeast from 30 degrees north latitude to the equator and that blow southeast from 30 degrees south latitude to the equator |
| jet stream | a narrow belt of strong winds that blow in the upper troposphere |
| convection cells | air that travels in large, circular patterns |
| pressure belts | bands of high pressure and low pressure found about every 30 degrees of latitude |