| A | B |
|---|
| arid | very dry |
| climate change | a change in temperature, precipitation, or other weather patterns over a long period of time |
| greenhouse gases | gases in the atmosphere that help trap some of the energy |
| greenhouse effect | describes how the atmosphere traps energy from sunlight and keeps Earth warm |
| elevation | the measure of how high about ground something is |
| latitude | measure of how far north or south of the equator a place is |
| equator | an imaginary line around the middle of the planet |
| climate | the pattern of weather conditions that occur in a certain area over a long period of time |
| polar climate | very cold and dry |
| temperate climate | mild |
| tropical climate | warm throughout the year |
