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

Related Mcqs:

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

   A. 10%
   B. 0.15%
   C. 1%
   D. 1.50%

2. Thick clouds of smoke containing soot and other particles coming out of the factories cause health problems for nearby people. Such as irritation of eyes and:

   A. Heart diseases
   B. Gastric diseases
   C. Kidney trouble
   D. None of these

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

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

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

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

5. 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

6. 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

7. Plants adapted to low light intensity have:

   A. Higher rate of CO2 fixation than the sun plants
   B. More extended root system
   C. Leaves modified to spines
   D. Larger photosynthetic unit size than the sun plants

8. The orange and red wave lengths of light are able to penetrates in a sea upto a depth of:

   A. 5 meters only
   B. 20 meters only
   C. 50 meters
   D. 80-100 meters

9. The zonels where no penetration of light occurs in a like:

   A. Littoral zone
   B. Limnetic zone
   C. Both (a) & (b)
   D. Profundal zone

10. If less light falls on a pond surface:

    A. The size of fishes becomes large
    B. The size of fish population becomes smaller
    C. The size of fish population is in no way connected with the amount of light falling on a pond
    D. Mutation will take place in fishes