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. |