Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account


small particles of rich soil

alluvial plain

area built up by rich fertile soil left by river floods


chemical salt used to make fertilizer


illegal fishing or hunting


facility that turns petroleum into gasoline and other products


dry riverbed that fills with water when rare rains fall in a desert


large areas of soft sands and dunes in the Sahara


fertile area that rises in a desert wherever water is regularly available

dry farming

agriculture that conserves water and uses crops and growing methods suited to semiarid environments


making a resource available in limited amounts


process of treating seawater to remove salts and minerals and make it drinkable

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!


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

Voice Recording