Answer:The river now serves 30 million people in seven U.S. states and Mexico, with 70 percent or more of its water siphoned off to irrigate 3.5 million acres of cropland. ... Less precipitation in the Rocky Mountains will yield less water to begin with. Droughts will last longer.
Explanation:
The succed of ancient egyption civiliztion came partly from its able to conditions of nile valley for agriculture
One situation that would definitely NOT lead to an increase in productivity is
D. an increase in the cost of factors of production .
An increase in the cost of production would rather lead to a decrease in productivity - it would make the production more difficult.
A. Because Frida suffered a horrible trolley accident.
