Hydroelectric power is the electric power generated by the energy of:

Related Mcqs:

1. In USA, electricity is also being generated with the half geothermal power plants in which is used water:

   A. Streams
   B. Sea
   C. River
   D. Hot springs

2. Employment generated in forestry operations is:

   A. Employment generated in establishment of forests
   B. Employment opportunities in wood harvesting
   C. Both (a) & (b)
   D. None of these

3. Exposure of human beings to high energy from nuclear power plants can cause:

   A. Cancer of skin and bone
   B. Cancer of heart and brain
   C. Cancer of skin and bone marrow
   D. Cancer of kidneys

4. Energy flow and energy transformations in living systems strictly conform to the:

   A. Law of limiting factors
   B. Liebig’s law of minimum
   C. Laws of thermo dynamics
   D. Shelford’s law of tolerance
   E. Biogenetic law

5. The ration of food energy assimilated to the food energy ingested is called:

   A. Trophic level efficiency
   B. Photosynthetic efficiency
   C. Net production efficiency
   D. Assimilation efficiency

6. The transfer of energy from one trophic level to another is governed by the 2nd law of thermodynamics. The average efficiency of energy transfer from herbivores to carnivores is:

   A. 25%
   B. 50%
   C. 10%
   D. 5%

7. The rate at which light energy is converted into chemical energy of organic molecules is the ecosystem’s:

   A. Net primary productivity
   B. Gross secondary productivity
   C. Net secondary productivity
   D. Gross primary productivity

8. The atomic energy is derived by splitting the nuclei of a:

   A. Radioactive element
   B. Radioactive cell
   C. Radioactive atom
   D. Radioactive substance

9. About 95% of the energy requirements in Pakistan are met with by the:

   A. Nuclear power plants
   B. Hdroelectric power
   C. Fossil fuels
   D. Solar energy

10. The transfer of food energy from the source in plants through a series of organism with repeated stages of eating and being eaten is known as:

    A. Food web
    B. Food chain
    C. Food cycle
    D. None of these