Because the mud in the water makes it dirty.
About 90 countries
they make it clean or they dont use water
How does this question in any way make sense?
Cholera is a horrible disease that you catch from constantly drinking dirty water. It is very common in poor countries, escpecially African Countries.
The principle is 'dilution': with the first addition of clean water to dirty water, the dirty water becomes less dirty because it is diluted by the clean water. With the continued addition of clean water to dirty water, eventually the dirty water will be completely diluted and there will be no dirty water left; it will all be replaced by clean water.
dirty water is recycled in the water cycle
People in third world countries who don't have access to clean water and must drink out of rivers, lakes,wells etc.
Dirty Water was created in 1966.
because they want dirty water
The answer is: i) 25 % of India {Madras} ii)Africa iii)Pakistan These are the only countries with dirty water. And many are dying due to this unfacilitated activity.
I would think if you look back in time you'll find that countries that have preponderance of dirty waters are those that never had regulations in place to prevent people from destroying the quality of water. Nature doesn't really harm the water; it's mankind with agricultural activity and manufacturing activity disposing their chemicals.
dirty water