Based on these maps, why does 95% of the irrigated agriculture in the United States and Canada occur west of the 95th meridian (central Kansas, western Manitoba)?

What will be an ideal response?


The region west of the 95th meridian generally receives less PRECIP (supply) than POTET (demand) and so must supplement with irrigation water.

Environmental & Atmospheric Sciences

You might also like to view...

Which of the following does not influence whether sediment is picked up by a stream?

A) Size and density of the sediment B) Turbulence of the moving water C) Location of the sediment in the stream D) Whether the stream flows north-south or east-west

Environmental & Atmospheric Sciences

Presently glaciers cover ____ of Earth's surface

a. less than 10 percent b. less than 1 percent c. more than 25 percent d. approximately 15 percent e. approximately 35 percent

Environmental & Atmospheric Sciences

Societies with the bulk of their employment in the primary sector are called pre-industrial

Indicate whether the statement is true or false.

Environmental & Atmospheric Sciences

Which of the following terms is another name for a small, rotating whirlwind observed at the surface?

A. haboob B. rotor C. dust devil D. seiche

Environmental & Atmospheric Sciences