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General Knowledge :: Environmental Science

  1. Mycorrhiza represents

  2. A.

     Symbiotic association between a fungus and liverworts

    B.

     Parasitic association between a fungus and an alga

    C.

     Parasitic association between a fungus and roots of plants

    D.

     Symbiotic association between a fungus and roots of higher plants

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  3. Which of the following interactions will not promote co evolution?

  4. A.

     Commensalism

    B.

     Mutualism

    C.

     Parasitism

    D.

     Interspecific competition

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  5. Earth summit was held in

  6. A.

     Stockholm in 1972

    B.

     Rio de Jeneiro in 1992

    C.

     Paris in 1992

    D.

     New York in 1972

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  7. The unit of measurement of intensity of sound is in _________

  8. A.

     Decibels

    B.

     Lux

    C.

     Parsec

    D.

     Candela

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  9. Which of the following spatial units is the largest in terms of scale?

  10. A.

     River segments

    B.

     Mesohabitats

    C.

     Patches

    D.

     River reaches

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  11. Natural earthquakes are caused by __________

  12. A.

     Earth's crust

    B.

     Deep seas

    C.

     Peak mountains

    D.

     Forests

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  13. Eutrophication results from

  14. A.

     Agricultural and sewage water

    B.

     Vehicle exhaust

    C.

     Pesticides

    D.

     Industrial effluents

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  15. Organisms that feed upon other living organisms as a source of energy and nutrients are called as

  16. A.

     Producers

    B.

     Consumers

    C.

     Pests

    D.

     Decomposers

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  17. Nuclear accidents mostly release radioactive __________ into the atmosphere

  18. A.

     Carbon

    B.

     Iodine

    C.

     Phosphorus

    D.

     Sulphur

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  19. The presence of which is necessary for photosynthesis

  20. A.

     Chloroform

    B.

     Chlorophyll

    C.

     Phosphorus

    D.

     Polymer

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