The ecosystem lying in the alpine zone between taiga and polar ice is called:

Related Mcqs:

1. These are generally, but not always, developed above the birch zone and in patches, sometimes extensive, within it, probably conditioned by edaphic and biotic factors, in Kashmir, Gilgit, Chitral and Hazara. This type ascends normally to ______ or more above the sub-alpine forests and climate must be similar but more severe than in sub-alpine forests:

   A. 140 m
   B. 150 m
   C. 160 m
   D. 170 m

2. Plants growing in alpine zone are dwarf due to:

   A. Low temperature
   B. High wind velocity
   C. High light intensity
   D. None of these

3. The areas laying above an altitude of about ______ and below zone of perpetual snow constitute alpine pastures:

   A. 3000 m
   B. 4000 m
   C. 5000 m
   D. 6000 m

4. The taiga ecosystems lie in the:

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

5. Exotic species, which brought for plantation from some other country to our country or even from one ecosystem to other ecosystem are called, as exotic species like:

   A. Pinus nigra – Japan
   B. Euralyptus – Australia
   C. Polunia – China
   D. All of the above

6. Topography – Lying diagonally between 24

   A. 87.98
   B. 88.98
   C. 90.98
   D. 92.99

7. A minima rotation worth the name is specified which corresponds to the age at which the trees reach the exploitable size which is usually 120 years, but is 150 years for the deodar, fir and kail in the moist zone of Kaghan 200 years for the ry zone of ______

   A. Swat
   B. Naran
   C. Kaghan
   D. None of these

8. In a comparative study of grassland ecosystem and pond ecosystem it may be observed that:

   A. Primary and secondary consumers are similar
   B. Both biotic and abiotic components are different
   C. The biotic components are almost similar
   D. The abiotic components are almost similar

9. The alpine forests are classed under the plant group called:

   A. Mesotherms
   B. Megatherms
   C. Microtherms
   D. Hekistotherms

10. The deserts of the world are discontinuously distributed in a pair of parallel belts lying about ______ North and South of the equator.

    A. 25
    B. 30
    C. 35
    D. 40