Disadvantage of un-controlled industrial and commercial revoulution in developing countries is such sites where the waste and garbage is dumped at certain places which is dangerous both for human and animal life. These plastic and polythene bags can take even thousand years to degenerate and even more are piling up everyday. This pond is full of waste and its such a poisonous smell there that its very difficult to stand there. And one can imagine the quality of milk from these cows.