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General Knowledge :: Environmental Science

  1. A smog that occurs due to low temperature and has reducing environment is

  2. A.

     los angeles smog

    B.

     photochemical smog

    C.

     london smog

    D.

     greenland smog


  3. The earth's radiation is often referred to as ________radiation, while the sun's radiation is often referred to as _________radiation.

  4. A.

     Shortwave, longwave

    B.

     Shortwave, shortwave

    C.

     Longwave, shortwave

    D.

     Longwave, longwave


  5. Increased surface UV leads to increased __________ ozone

  6. A.

     tropospheric

    B.

     stratospheric

    C.

     lonospheric

    D.

     exospheric


  7. Photochemical smog is called

  8. A.

     Tokyo smog

    B.

     London smog

    C.

     Los Angeles smog

    D.

     None of the above


  9. The albedo of the earth's surface is only about 4%, yet the combined albedo of the earth and the atmosphere is about 30%. Which set of conditions below best explains why this is so?

  10. A.

     High albedo of clouds, low albedo of water

    B.

     High albedo of clouds, high albedo of water

    C.

     Low albedo of clouds, low albedo of water

    D.

     Low albedo of clouds, high albedo of water


  11. The slow rate of decomposition of fallen logs in nature is due to their

  12. A.

     poor nitrogen content

    B.

     low moisture content

    C.

     low cellulose content

    D.

     anaerobic environment around them


  13. A high Biological Oxygen Demand (BOD) indicates that:

  14. A.

     water is pure

    B.

     absence of microbial action

    C.

     Low level of microbial pollution

    D.

     High level of microbial pollution


  15. Thorn-forests are found in the _______ regions.

  16. A.

     semi-arid

    B.

     high rain fall areas

    C.

     low temperature

    D.

     frozen areas


  17. Green plants are absent in deep sea. Why?

  18. A.

     Light is absent

    B.

     High pressure

    C.

     Low temperature

    D.

     Great depth


  19. Euro II standard refers to _________

  20. A.

     Lowering sulfur content in fuel

    B.

     Increasing sulfur content in fuel

    C.

     Lowering carbon content in fuel

    D.

     increasing carbon content in fuel