To accommodate the rapid human population growth, the water supply should increase by
(1 point)
Responses
5 percent each year over a 15-year period.
5 percent each year over a 15-year period.
20 percent over a 15-year period.
20 percent over a 15-year period.
50 percent over a 10-year period.
50 percent over a 10-year period.
10 percent each year over the next two decades.