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General Knowledge :: Environmental Science

  1. Much of Tibet lies at altitudes over 18,000 feet where the pressure is about 500 mb. At such altitudes, the Tibetans are above roughly:

  2. A.

     10% of the air molecules in the atmosphere

    B.

     25% of the air molecules in the atmosphere

    C.

     50% of the air molecules in the atmosphere

    D.

     75% of the air molecules in the atmosphere

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  3. Mobile combustion accounts

  4. A.

     10-20% of air pollution

    B.

     40-50% of air pollution

    C.

     50-60 % of air pollution

    D.

     5-10 % of air pollution

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  5. The range of normal human hearing is in the range of

  6. A.

     10 Hz to 80 Hz

    B.

     50 Hz to 80 Hz

    C.

     50Hz to 15000 Hz

    D.

     15000 Hz and above

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  7. At which temperature would the earth be radiating energy at the greatest rate or intensity?

  8. A.

     -5o F

    B.

     -40o F

    C.

     60o F

    D.

     32o F

    E.

     105o F

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  9. The ocean covers ________ percentage of Earth's surface.

  10. A.

     51%

    B.

     61%

    C.

     71%

    D.

     91%

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  11. The mean of annual rainfall in India is

  12. A.

     110 mm

    B.

     110 cm

    C.

     85 cm

    D.

     110 m

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  13. The air temperature is 45o F, the wind is blowing at 30 MPH, and the wind chill temperature is 15o F. These conditions would be equivalent to:

  14. A.

     A 15o F air temperature and 0 MPH winds

    B.

     A 30o F air temperature and 45 MPH winds

    C.

     A 30o F air temperature and 15 MPH winds

    D.

     A 15o F air temperature and 30 MPH winds

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  15. Which of the following statements regarding species interdependence are true?
    A. An association of two species where one is benefitted and other remains unaffected called mutualism
    B. An interspecific association where both partners derive benefit from each other is called commensalism
    C. A direct food relation between two species of animals in which one animals kills and feed on another is referred as predation
    D. A relationship between two species of organism where both the partners are benefitted from each other is called symbiosis

  16. A.

     A and B only

    B.

     C and D only

    C.

     A and C only

    D.

     B and C only

    E.

     B and D only

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  17. Where cold surface air replaces warm air, the boundary separating the different bodies of air is:

  18. A.

     A parallel of latitude

    B.

     A tornado

    C.

     A cold front

    D.

     A warm front

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  19. What is meant by root zone process?

  20. A.

     A control measure to prevent water pollution

    B.

     A process by which roots of plants are spread on the ground

    C.

     A control measure to prevent soil pollution

    D.

     None of these

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