Fragile ecosystems cover:

Related Mcqs:

1. The taiga ecosystems lie in the:

   A. Alpine zone
   B. Sub-alpine zone
   C. Temperate zone
   D. Sub-tropical zone

2. The living organisms of all ecosystems collectively constitute:

   A. Producers
   B. Decomposers
   C. Consumers and decomposers
   D. Biosphere

3. Short and simple food chains are rare in the world and may be found in simple ecosystems like:

   A. Savanna
   B. Tundra
   C. Grassland
   D. Desert

4. According to Odum the light absorbed by the plant cover in terms of kcal/m2/day is:

   A. 150
   B. 1,500
   C. 300
   D. 3,000

5. The terms used for various programmes of extending tree cover to non-forestry areas, used rather loosely in Indo-Pak subcontinent are:

   A. Social forestry, farm forestry, agroforestry
   B. Community forestry, environmental forestry, tree farming
   C. Forest farming, village woodlots, small-scale forestry
   D. All of the above

6. The soil cover of the earth lies between:

   A. Atmosphere and lithosphere
   B. Lithosphere and biosphere
   C. Atmosphere and hydrosphere
   D. All of these

7. Cover crops is:

   A. Crops of subsidiary species, (usually low shrubs but on occasion small trees or even herbs)
   B. Intentionally introduced into a plantation with the primary object of restoring a cover to the soil as quickly as possible
   C. It minimizing the known deterioration consequent on exposure
   D. All of the above

8. Kohistan ranges cover about ________ million ha.

   A. 2.3 million
   B. 2.4 million
   C. 2.5 million
   D. 2.6 million

9. Himalayan forest grazing lands cover:

   A. Siran
   B. Kaghan
   C. Neelam
   D. Jhelum
   E. All of the above

10. Windbreaks/shelterbelts cover:

    A. Trees and / or shrubs can substantially improve the productivity of farmlands
    B. They are exposed to strong winds
    C. Both (a) & (b)
    D. None of these