According to Odum, the percentage of net primary production of total light intake is:

Related Mcqs:

1. 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

2. According to Lindemann, the percentage of net production passed on to carnivores is:

   A. 28.6
   B. 26.8
   C. 22.6
   D. 22.8

3. Odum did not recognise the following relationship as a positive interaction:

   A. Commensalism
   B. Protoco-operation
   C. Mutualism
   D. Antibiosis

4. Odum has described soil erosion as:

   A. Soil pollution
   B. Creeping death of soil
   C. Loss of living stratum
   D. Loss of feeding zone

5. The percentage of light from total solar input utilized by plants:

   A. About 1%
   B. 3 – 5%
   C. 7 – 8%
   D. 14%

6. According to Geiger, the percentage of light reflected by the clouds is:

   A. 9%
   B. 10%
   C. 48%
   D. 39%

7. Mr. X is eating curd/yoghurt. For this food intake in a food chain he should be considered as occupying:

   A. First trophic level
   B. Second trophic level
   C. Third trophic level
   D. Fourth trophic level

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

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

9. The gross primary production is maximum in the following ecosystem:

   A. Open sea
   B. Grasslands and pastures
   C. Coniferous forests
   D. Tropical and sub-tropical forest

10. The efficiency of primary production in an ocean is:

    A. 5%
    B. 3.50%
    C. 1%
    D. 0.20%