problem 1:
What are the various types of indoor air pollutants?
problem 2:
What a detail explanation of pollution and how is related with electric and magnetic fields describeed all along with health effect caused by it.
problem 3:
prepare in brief, the causes and effects of the thermal pollution.
problem 4:
prepare down the preventive measures to be taken for the indoor pollution.
problem 5:
describe main nuclear disasters of historic significance.
problem 6:
describe the sources of nuclear waste?