Arizona State University (ASU) GLG108 Water Planet Midterm 2 Practice Exam

The greatest consumptive use of water in the Colorado River Basin is irrigation. This is primarily because agriculture plays a significant role in the region, where water is needed to support crop growth in an otherwise arid environment. Many farmers rely on the Colorado River and its tributaries to supply the water necessary for irrigation, making it the most substantial demand for water in this basin.

Irrigation consumes vast quantities of water as it is needed to grow food and sustain agricultural outputs, which are crucial for both local and national economies. While domestic use, industrial processing, and recreational activities also utilize water in the basin, their total consumption does not come close to the demands placed by irrigation. This significant agricultural need has made efficient water management a vital priority in the region.