TRUE.....Improper handling of waste water is the main reason behind water getting polluted. Sewage is drained off in large quantities to rivers. It slows down the process of dilution of constituents of water; this in turn stagnates the river. It may also result into spread of diseases like diarrhea, typhoid, etc
we are able to see accurat images of the brain
<span>carbohydrates and Vitamin B complex</span>
