The hardest to recover from alcoholism is dying.
That statement is True
The Percentage has been increased by more than 15 % since 2000 ( the percentage of U.S Citizen who relied on Groundwater for drinking water is only about 35 % back then)
It's probably because more than 90% of earth's fresh water supplies is located underground
Potential gravitational energy.
Hope this helped, have a great day! :D