CSS :: Pollution

@ : Home > Forestry > Pollution

191.

Lead (Pb) is mainly considered:

A.	Soil pollutant	B.	Water pollutant
C.	Air pollutant	D.	Noise pollutant

192.

Greenhouse effect is:

A.	Caused by CO2 only	B.	Caused by CH4, SO2, NO2 gases
C.	Caused by those gases which absorb the infra-red light reflecting from earth	D.	Caused by combination of many gases

193.

Examples of regional pollution are:

A.	Acid rain	B.	Smog
C.	Both (a) & (b)	D.	None of these

194.

Water pollution is caused by:

A.	Ammonia	B.	Phytoplankton
C.	Industrial effluents	D.	Smoke

195.

Greenhouse effect is due to:

A.	CO	B.	CO2
C.	NO2	D.	PO4

196.

The high amount of E. coli in water in the indicator of:

A.	Hardness of water	B.	Industrial pollution
C.	Sewage pollution	D.	Presence of chlorine in water

197.

What is the intensity of sound in normal conversation?

A.	10-20 dB	B.	40-60 dB
C.	90-12 dB	D.	120-150 dB

198.

The result of ozone hole is:

A.	Global warming	B.	Acid rain
C.	Greenhouse effect	D.	The UV radiations reach the earth

199.

Most hazardous metal pollutant of automobile exhaust is:

A.	Hg	B.	Cd
C.	Pb	D.	Cu

200.

Ozone layer of upper atmosphere is being destroyed by:

A.	Sulphur di-oxide	B.	Carbon di-oxide
C.	Chloro-fluoro-carbon	D.	Smog