Biodiversity & ...

Smog which doesn ’t contain any secondary pollutants is:

Read the following statements:
i. carbondioxide is a qualitative pollutant.
ii. carbondioxide is already present in environment and is termed as pollutant when it ’s concentration increases in the environment:

The dust collection efficiency of Electrostatic precipitator is affected by the particle size of the aerosol to be collected, so :

Planting trees on both the sides of roads and highways is called providing green muffler. It is to reduce :

Irreparable computers and other electronic goods are known as

Various methods applied for removing particulate pollutants from air employs:

Deoxygenation of water causes :
i. conversion of eutrophic water body back into oligotrophic.
ii. growth of anaerobic microbes producing secondary pollutants like H₂ S.

Huge quantity of sewage is dumped in a river, the BOD will

Acid rain is due to

Eutrophication of water body occurs due to addition of