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General Knowledge :: Environmental Science

  1. An important reason for the large daily temperature range over deserts is:

  2. A.

     There is little water vapor in the air to absorb and re-radiate infrared radiation

    B.

     The light-colored sand radiates heat very rapidly at night

    C.

     Dry air is a very poor heat conductor

    D.

     Free convection cells are unable to form above the hot desert ground

    E.

     The ozone content of desert air is very low


  3. The formula of growth rate for population in given time is

  4. A.

     dt/dN=rN

    B.

     dt/rN=dN

    C.

     dt/rN=dt

    D.

     dN/dt=rN

    E.

     dN/rN=dt


  5. Air is composed of gases, water vapours and

  6. A.

     rainfall

    B.

     snowfall

    C.

     dust particles

    D.

     light


  7. Which of the following is a biodiversity hot spots in India?

  8. A.

     Western Ghats

    B.

     Nandadevi

    C.

     Eastern Ghats

    D.

     Aravalli


  9. Temperate forests occur in India in

  10. A.

     Indo-gangetic plains

    B.

     Himalayas

    C.

     Eastern India

    D.

     Southern peninsula


  11. The unit of total water content of the soil is known as

  12. A.

     Holard

    B.

     Chraserd

    C.

     Echard

    D.

     All of the above


  13. The unfavourable alteration of environment due to human activities is termed as

  14. A.

     ecological disturbance

    B.

     catastrophe

    C.

     ecological degradation

    D.

     pollution


  15. The complex network of interconnected food chains is called ___________

  16. A.

     Trophic level

    B.

     Food web

    C.

     Ecological pyramid

    D.

     Ecology chain


  17. Autecology deals with

  18. A.

     Ecology of species

    B.

     Ecology of many species

    C.

     Ecology of community

    D.

     All the above


  19. Synecology deals with

  20. A.

     Ecology of many species

    B.

     Ecology of many populations

    C.

     Ecology of community

    D.

     None of the above