1. Increase in concentration of the
toxicant at successive trophic level is known as
A. Biotransfomation
B. Biomagnification
C.
Biogeochemical cycling
D. Biodeterioration
Ans:
B.Biomagnification
2.Which one of the following combination is wrong?
A.Rio convention – Air pollution
B.
Kyoto Protocol – Climate Change
C.Montreal Protocol- Ozone Depletion
D. Ramsar convention-Wetland conservation
Ans:
A.Rio convention – Air pollution
3. Example of secondary air pollutant is/
are
A. Smog
B.
PAN
C. O3
D.All of these
Ans:
D.All of these
4.
Ionosphere is between
A. Stratospere and mesosphere
B. Mesospere and thermosphere
C. Trophosphere and stratospere
D. Trospere and thermospere
Ans: B.Mesospere and thermosphere
5. Photochemical
smog always contains
A. O3
B. CO
C. PAN
D. All
of these
Ans: A. O3
6.
The polluting strength of sewage is usually characterized by
A. Eutrophication
B.Nitrogen content
C.Ozone content
D. BOD
Ans:D. BOD
A. E. haeckel
B. E. Warming
C.E P Odum
D. AG Tansley
Ans: D. AG Tansley
8.How many hotspot of biodiversity in the world have been identified till date by Norman Myers?
A. 17
B. 34
C. 25
D. 43
Ans: B. 34
9. What
is the National aquatic animal of India?A. Blue whale
B. Sea horse
C. Gangetic Shark
D. River Dolphin
Ans:
D.
River Dolphin
10.
Depletion of which gas in the atmosphere can lead to an increased incidence of
skin cancers?A. Ammonia
B. Ozone
C.Methane
D. Nitrous oxide
Ans:
B. Ozone