1. Irritation in eyes is caused by the pollutant
 (A) Sulphur di-oxide
 (B) Ozone
 (C) PAN
 (D) Nitrous oxide

2. Which is the source of chlorofluorocarbons ?
 (A) Thermal power plants
 (B) Automobiles
 (C) Refrigeration and Airconditioning
 (D) Fertilizers 

3. Which of the following is not a renewable natural resource ?
(A) Clean air 
(B) Fertile soil
(C) Fresh water 
(D) Salt

4. Which of the following parameters is not used as a pollution indicator in water ?
(A) Total dissolved solids
(B) Coliform count
(C) Dissolved oxygen
(D) Density

5. S and P waves are associated with
(A) floods 
(B) wind energy
(C) earthquakes 
(D) tidal energy

6. Match Lists I and II and select the correct answer from the codes given below :
List – I  List – II 
(i) Ozone hole  (a) Tsunami
(ii) Greenhouse effect (b) UV radiations
(iii) Natural hazards (c) Methane
(iv) Sustainable development (d) Eco-centrism
Codes :
  (i) (ii) (iii) (iv)
 (A) (b) (c) (a) (d)
 (B) (c) (b) (a) (d)
 (C) (d) (c) (a) (b)
 (D) (d) (b) (c) (a)