|
drought
|
A prolonged period of time without rainfall. |
| equator
|
The made up line around the earth that shows how far the North and South poles are. |
| erosion |
The gradual process of being eroded by natural forces. |
| mantle
|
A specific area of the earth that falls between the core and the crust. |
| atmosphere
|
The specific gas that surrounds the earth. |
| ocean
|
Large areas of salt water that surround much of the earth's surface. |
| axis |
The central like the earth revolves around. |
| ozone
|
A type of oxygen that is produced by electricity and is in the air, mostly after a thunderstorm. |
| revolution
|
The act of rotating around a center or axis. |
| rotation
|
The process of moving around a center or axis. |
| terrain
|
Any area of land with specific natural features. |
| core |
The central portion of the earth which lies below the mantle. |
| crust
|
The outer layer of the earth's surface. |