Competition for water, minerals, light and space is most severe between two:

Related Mcqs:

1. Competition is most severe between:

   A. Closely related species growing in the same habitat
   B. Closely related species growing in the same niche
   C. Distantly related species growing in different niche
   D. Distantly related species growing in different habitat

2. The incorporation of minerals by microbes is called:

   A. Mineralization
   B. Humification
   C. Nutrient immobilization
   D. Microbe immobilization

3. Non-renewable environmental resources include various metals non-metalic minerals and

   A. Coal
   B. Natural gas
   C. Oil
   D. Fossil fuels

4. A habitat of long severe winters and growing season limited to a few months of summer constitutes:

   A. Savana ecosystem
   B. Taiga ecosystem
   C. Tundra ecosystem
   D. None of the above

5. 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

6. Most severe environmental hazard to mankind is due to:

   A. Air pollution
   B. Water pollution
   C. Noise Pollution
   D. Radioactive pollution

7. The interspecific competition is also called:

   A. Interference competition
   B. Scramble competition
   C. Allelopathy
   D. Synnecrosis

8. For wildlife, the struggle for survival became a competition with human beings and their livestock for the very basis of:

   A. Life
   B. Food
   C. Shelter
   D. Space
   E. All of the above

9. When a big fish eats a small fish, which easts water-fleas supported by phytoplankton, the water leas are:

   A. Primary consumers
   B. Producers
   C. Secondary consumers
   D. Top consumers in this food chain

10. The percentage of light energy utilized for photosynthesis by higher plants is:

    A. 100
    B. 50
    C. 10
    D. 1