What happens due to oil pollution in sea?

What is pollution ?

What happens in systole?

What are the types in pollution?

What happens when water is polluted ? Name the diseases caused by water pollution.

What are the effects of soil pollution on the agriculture?

What happens to air on heating it?

What happens to air on cooling it?

What are the effects of soil pollution due to urban activities?

Obsere the data given in the following table. How was the threat to the lake due to pollution discovered ?

what happens during pyrolysis