Author Question: Approximately what percent of the world's irrigation water is from groundwater? A) 15 percent B) ... (Read 55 times)

moongchi · **on:** Jul 14, 2018

Approximately what percent of the world's irrigation water is from groundwater?

A) 15 percent B) 25 percent C) 50 percent D) 80 percent

Question 2

An element or combination of elements that forms an inorganic, natural compound is called a

A) granitic compound. B) tectonic rock.
C) mineral. D) molecule.