What Of the total amount of available water on earth what prevent is useable?

Why did people support prohibition in the 1920's? How water can be toxic? How can you get a SSS number with a b2 tourist visa? Why is it difficult to predict Earth's future climate using global climate models? How does Easy Fundraising work? Would an unadjusted accellerator pump on an 87 suzuki samurai cause high carbon monoxide readings? What three factors should be considered before mining a newly found mineral deposit? How much money did A and W raise for the MS Society of Canada? Who worked in the temperance and antislavery movements and built the women's movement into a national movement? Do contract labor workers get benefits? Who is trying to fix water pollution? What settling process in water purification plants is aided by the addition of? What are the Objectives of employees welfare measure? What is it called when someone becomes a sir? Camping damage to the environment? What is the principal that has genes that segregate independently do not influence each others inheritance? Why are men attracted to preteen girls? What happens to your balls when you get a wedgie? How much CO2 per mile does a car emmit? What is the use of air-bath?