Absorption techniques are used to control
Petrochemicals
gaseous pollutants
toxic gases
oxidizable pollutants
The process of deposition of acid on earth from the atmosphere is called
Air pollution
photochemical smog
Green house effect
Acid deposition
Higher the BOD, lower would be
DO
COD
BOD
Both bank
Most effective device to remove particulate pollutants
Use of ESP
Use of cyclonic separators
use of arresters
Use of filters
Major source of methane in India is
Sugar canefields
Ricefields
Wheat fields
Fruit orchards
The ultraviolet radiations in the stratosphere are absorbed by
O2
O3
SO2
Argon
The pH of acid rain is
5.6
6.5
2.5
4.8
If the source of water pollution can be identified as a specific site, it is called
Non-Point source
Point source
Unknown source
All these
Physical water pollutant
Viruses
Bacteria
Oil spills
Cd
If the solar radiation is less the photo chemical smog formation becomes incomplete, the air is called
Grey air
Brown air
Green air
Both b and c
