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General Knowledge :: Environmental Science

  1. Thermal belts are:

  2. A.

     Pockets of warm air resting on a valley during the afternoon

    B.

     Pockets of cold air resting on a valley floor at night

    C.

     Warmer hillsides that are less likely to experience freezing conditions

    D.

     Cold, below-freezing air found at the top of a mountain


  3. The term "Biocoenosis" was proposed by

  4. A.

     Transley

    B.

     Carl Mobius

    C.

     Warming

    D.

     None of the above


  5. The best way to check soil erosion is by providing adequate trees and

  6. A.

     Grass cover

    B.

     Manure

    C.

     Water

    D.

     Sand


  7. _________ is a mixture of 50 - 90% of methane

  8. A.

     Natural gas

    B.

     Air

    C.

     Water

    D.

     Bio diesel


  9. The source of atmospheric oxygen is

  10. A.

     Nitrogen cycle

    B.

     Green Plants

    C.

     Water

    D.

     Carbon Cycle


  11. Which of the following type of pollution can cause the outbreak of jaundice

  12. A.

     Air

    B.

     Thermal

    C.

     Water

    D.

     Land


  13. India is primary centre of domestication of

  14. A.

     Sheep

    B.

     Goat

    C.

     Water Buffalo

    D.

     Elephants


  15. Which is an example for sedimentary biogeochemical cycle

  16. A.

     Oxygen cycle

    B.

     Nitrogen cycle

    C.

     Water cycle

    D.

     Phosphorus cycle


  17. Which of the following is not a reason why water warms and cools much more slowly than land?

  18. A.

     Solar energy penetrates more deeply into water

    B.

     Heat energy is mixed in a deeper layer of water

    C.

     Water has a higher heat capacity

    D.

     A portion of the solar energy that strikes water is used to evaporate it

    E.

     It takes more heat to raise the temperature of a given amount of soil 1oC than it does to raise the temperature of water 1oC


  19. The gas that shows the most variation from place to place and from time to time in the lower atmosphere:

  20. A.

     Ozone (O3)

    B.

     Carbon dioxide (CO2)

    C.

     Water vapour (H2O)

    D.

     Methane (CH4)

    E.

     Argon (Ar)