If less light falls on a pond surface:

Related Mcqs:

1. Pond is an example of:__________?

   A. Artificial ecosystem
   B. Forest ecosystem
   C. Natural ecosystem
   D. Grassland ecosystem

2. The pyramid of biomass in a shallow pond ecosystem is:

   A. Inverted
   B. Upright
   C. Rhomboidal
   D. Liver

3. Which part of the pond ecosystem does not affect by the temperature:

   A. Epilimnion
   B. Metalimnion
   C. Hypolimnion
   D. All of the above

4. 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

5. 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

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

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

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

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

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

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