What percentage of the U.S. population derives a portion of its freshwater from groundwater resources?

A) 5 percent B) 15 percent C) 25 percent D) 50 percent E) 75 percent


D

Environmental & Atmospheric Sciences

You might also like to view...

America's Corn Belt is a functional region

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Mantle convection involves the asthenosphere moving upward due to its lower

A. mineral content. B. temperature. C. density.

Environmental & Atmospheric Sciences

How many electrons are gained or lost in the following half-reaction? C ? C-4

A) 2 electrons are lost B) 1/2 electron is gained C) 1/2 electron is lost D) 2 electrons are gained E) 4 electrons are gained

Environmental & Atmospheric Sciences

The composition of the earth's inner core is thought to be ________

A) solid iron-nickel alloy B) basalt C) granite D) peridotite

Environmental & Atmospheric Sciences