Only a small fraction of water available on
the earth is fit for use of plants , animals and humans . Most of the
water is in the oceans and it cannot be used directly . When the level
of the ground water decreases drastically . this cannot be used any
more.
The total amount of water on earth remains the same, but, the water available for use is very limited and is decreasing with over usage. the demand for water is increasing day by day more water is being used for producing food and by the industries. Hence, its very important that water is used carefully.
The total amount of water on earth remains the same, but, the water available for use is very limited and is decreasing with over usage. the demand for water is increasing day by day more water is being used for producing food and by the industries. Hence, its very important that water is used carefully.
One way of increasing the availability of water is to collect
rainwater and store it for later use. Collecting rainwater in this way
is called rainwater harvesting. the basic idea behind rainwater
harvesting is "catch water where it falls". there are two techniques of
rainwater harvesting:
1 . Rofftop
harvesting : in this system the rainwater is collected from the rofftop
to a storage tank, through pipes. This water may contain soil from the
roff and need filtering before its used. Instead of collecting
rainwater in the tank, the pipes can go directly into a pit in the
ground. then seeps into the soil to recharge or, refill the ground
water.
2 .Another option is to allow water to go into the ground directly from the roadside drains that collect rainwater.
Share n Enjoy
Source:http://www.indyarocks.com/blogs/blog_visiterview_main.php?id=208007&sts=rec
No comments:
Post a Comment
Every day in this blog, our posts are flooded with help request comments from all around the world. The mad, the bad and the downright stupid.
Our dedicated team go through each and every one of these comments.
Just a very few comments actually are replying by our team. If you post url(s) to another websites even we don't approve your comment. (you can link to any page in this blog)