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1. An earthquake measuring over 8 on Richter scale is rated as

(A) Destructive
(B) Major
(C) Great
(D) Damaging


2. Given below are two statements, one labelled as Assertion (A) and the other labelled as Reason (R).

Assertion (A): It is difficult to judge how changes in localized gas samples represent more general conditions in the Volcano.

Reason (R): The composition of the juvenile gases emitted from volcanic vents often show considerable variation over short periods and distances.

Choose the correct answer.

(A) Both (A) and (R) are true and (R) is the correct explanation of (A).
(B) Both (A) and (R) are true, but (R) is not the correct explanation of (A).
(C) (A) is true, but (R) is false.
(D) (A) is false, but (R) is true.



3. Match the List – I with List – II and choose the correct answer from the codes given below:

List – I                                        List – II
(Constituents of 
Particulate matter)                    (Sources)
a. Si                          1. Natural Resources
b. PAH                      2. Incomplete combustion of fossil fuels.
c. SO2-4                    3. Elements largely introduced by Human Activities.
d. Pb                        4. Reactions of a gas in atmosphere.

Choose the correct code:
      a          b          c         d
(A) 1          2          4         3
(B) 2          3          4         1
(C) 2          4          1         3
(D) 3          4          2         1



4. Which of the following does not have a direct role in climate change?

(A) Sulphate and nitrate aerosols
(B) Black carbon aerosols
(C) Surface ozone
(D) Nitric oxide



5. Which of the following categories of plants get benefited more due to elevation of CO2 level?

(A) C3 plants
(B) C4 plants
(C) CAM plants
(D) All of the above




6. The country which uses maximum nuclear power is

(A) U.S.A.
(B) Japan
(C) France
(D) Germany




7. Which of the following chemicals of anthropogenic origin mimics the effect of estrogen in animals?

(A) Alkyl phenol
(B) Polychlorinated biphenyl
(C) O, p’ - DDT
(D) All the above



8. “Black Foot” disease in human beings caused due to use of water contaminated with

(A) Mercury
(B) Cadmium
(C) Silver
(D) Arsenic




9. Match Column – I with Column – II:

Column – I                                              Column – II
a. The Rio Summit                                     1. 1997
b. Johannesburg Earth Summit                 2. 1972
c. Kyoto Protocol                                       3. 1992
d. The Stockholm Conference                  4. 2002

Codes:
      a        b       c        d
(A) 3        4       1        2
(B) 1        2       3        4
(C) 4        3       2        1
(D) 2        1       4        3



10. As per Indian Standards (BIS) for drinking water desirable limit for total hardness as CaCO3 is

(A) 100 mg/l
(B) 200 mg/l
(C) 300 mg/l
(D) 400 mg/l

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