Alot :)
100%
France uses alot of water for washing clothes , having baths and others
yes because there underwater so much that they are clean and clean the water.
it has 97.2 percent of water in the world
13
100%
Water is salty in oceans. Much of the water is polluted. Hence, it becomes difficult to find clean fresh water.
if you don't have clean water you can get sick from drinking it. You can also get sick from taking a shower in it. Pretty much, it means clean water; no sickness, your good. Dirty water in the other hand; sickness, and that's bad.
about 9.3 gallons
You'll need more than water my friend.
How ever much it needs to be sparkly clean! ;)
Since the answer to the first question is "no", the answer to the second question is kind of meaningless. Bleach and water will just make you sick, it won't "clean your system."