2006-10-26 03:46:17 · 8 answers · asked by vidhya 1 in Science & Mathematics ➔ Geography
There are a few reasons. Firstly, water is potentially renewable, but humans can remove water from the usable portion of the cycle by polluting it. Even in the absence of any pollution, water scarcity can occur because water is not evenly distributed across the globe. If one area experiences a draught, some other area is probably experiencing flooding. Or more water may have become locked up in ice near the poles. Many things can happen within the water cycle to change the amount of water available to human beings.
2006-10-26 03:48:52 · answer #1 · answered by DavidK93 7 · 1⤊ 0⤋
Water renewability has nothing to do with availability. Water is renewable through rain replenishment, but that is only true for places that have water to start with. There are places in the world where water isn't a natural resource and therefore it isn't a renewable resource in those places.
2006-10-26 03:56:12 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Becuse clean water can be renewed, even though some places lack water. With gasoline/fossil fuels, you can only really use it once. But the way that hydroelectricity is designed, it allows you to get a large amount of energy over time from the same substance with out depleting it.
2006-10-26 03:58:15 · answer #3 · answered by Hank 1 · 0⤊ 0⤋
water is an renewable source since total amount of water that present now is same as when earth was formed water cannot escape from earth.....................
but the water is being polluted
and some are hard in nature which cannot be used for drinking purpose and other purposes
so their exist water scarcity
2006-10-26 05:34:32 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Sometimes the means necessary to clean water and renew it aren't there. For example, in a small country surrounded by land, they wouldn't be able to use the technique of desalinization (Taking the salt out of salt water) because they don't have an ocean or sea by them. And poorer countries can't afford some of the technologies.
2006-10-26 03:56:50 · answer #5 · answered by Mandy 2 · 0⤊ 0⤋
In those places, the demand for water is greater than the speed with which it renews.
2006-10-26 07:28:39 · answer #6 · answered by Anonymous · 0⤊ 0⤋
we resort to all techniques in wasting water for our unusual needs
2006-10-26 04:30:11 · answer #7 · answered by R Purushotham Rao 4 · 0⤊ 0⤋
well there is more than enough water in the world but the amount of fresh water is very less compared to the salty water
that's y!!!!!!!!!!!!!!!!!!!! ................shortest of actually fresh water!
keep that in mind ..............ok
so now preserve "fresh water"
2006-10-26 04:57:08 · answer #8 · answered by grina 1 · 0⤊ 0⤋