EARTH’S ATMOSPHERE

Proff. R. S. Sengar

1. DDT, BHC are the type of:

(a) Degradable and quantitative pollutant

(b) Non–Biodegradable and qualitative pollutant

(c) Degradable and qualitative pollutant

(d) Non–Biodegradable and quantitative pollutant

Ans. B

2. The threat to Taj Mahal from the Mathura refinery is due to the gases:

(a) PAN, NO, H2SO4

(b) Fluorine, Freon, SO2

(c) H2O, SO2, NO2

(d) CO2, CH2 NO

Ans. C

3. SO2 affects humans when its concentration rises above:

(a) 0.1 ppm       (b) 0.01 ppm

(c) 1 ppm        (d) 0.001 ppm

Ans. C

4. Secondary pollutants are more potent than primary pollutant due to the phenomenon of:

(a) Synthesis     (b) Synergism

(c) Condensation  (d) Degradation

Ans. B

5. When organism/acts as an indicator of SO2 pollution:

(a) Mycorrhizae   (b) Lichens

(c) Garden Pea   (d) Both B and C

Ans. D

6. Marsh Gas is:

(a) CH4          (b) SO2

(c) CO           (d) H2S

Ans. A

7. Cave dwelling, Proteus anguinushave:

(a) Upper surface dark and the lower surface is light

(b) No pigment in the skin

(c) Light Skin

(d) Dark Skin

Ans. B

8. Primary pollutant is:

(a) Hydrocarbon   (b) O3

(c) PAN          (d) C O

Ans. D

9. Snout is present in:

(a) Climbing organism

(b) Digging organism

(c) Cave dwellers

(d) Fast running organism

Ans. B

10. Mark the incorrect matching:

(a) Pollution from single point-sewage pollution

(b) Pollutants are emited from a mobile structure – Mobile source pollution

(c) Pollutant are produced from fixed source pollution

(d) Pollution is passed along narrowbeltline source pollution

Ans. A

11. Organisms living in desert are also called:

(a) Terrestrial     (b) Xeric

(c) Cavedorial     (d) Arboreal

Ans. B

12. In which animals nostrils are directed upward & are protected by valves or are reduced to pinhols:

(a) Desert        (b) Terrestrial

(c) Cave dwellers ()d Burrowing

Ans. A

13. Natural pollution is caused by one of the following reasons:

(a) Industrial effluents, fertilizers, cosmic rays

(b) Nitrogen oxide, deforestation, sewage

(c) Burning of fossil fuel, paddy fields, mining

(d) Volcanic eruption, paddy fields, alimentary canal of cattle

Ans. A

14. Moloch (spiny lizard) has a special way of getting water:

(a) Absorbs water from the moist sand by means of skin like a floating paper

(b) Depends on the sap of plants & blood of prey

(c) Utilizes the water obtained by metabolizing their food contents

(d) Drinks lots of water when available

Ans. A

15. Which of the organism have larger body size?

(a) Desert        (b) Aquatic

(c) Volant         (d) Terrestrial

Ans. B

Writer: Professor R. S. Sengar, Director Training and Placement, Sardar Vallabhbhai Patel University of Agriculture and Technology, Modipuram, Meerut.