Create an account
an area of the earth's surface that contains one or more characteristics that distinguish it from other areas.
the change in location of phenomena such as people, resources, and ideas between places across the earth's surfaces
the relationship between people resources or ideas and the degree to which they influence each other over the earths surface
the degree to which an area has changed its geographic characteristics, features or patterns over a period of time
Spatial change over time
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together