| Column 1 | Column 2 |
| a set of physical conditions of the lower atmosphere such as temperature, precipitation, and humidity in a given area ofer a period of hours or days | |
| gases in the troposphere that cause the greenhouse effect | |
| the effect that reduces the amount of heat that reaches earth's surface and organisms | |
| an area's general pattern of atmospheric conditions over periods of at least three decades | |
| low precipitation on the leeward side of a mountain when prevailing winds flow up and over a high mountain | |
| terrestrial regions inhabited by certain types of life | |
| mass movements of surface water produced by prevailing winds blowing over the oceans | |
| perenially frozen layer of the soil that forms when the water there freezes | |