The efficiency of primary production in an ocean is:

Related Mcqs:

1. 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

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

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

3. The sulphate rocks are formed in ocean by leaching of:

   A. FeS and Fe2S3
   B. Organic sulphates and -SH
   C. Soluble inorganic sulphates
   D. All of these

4. The percentage of run off water reaching the ocean and evaporation into atmosphere is respectively:

   A. 27 & 73
   B. 73 & 27
   C. 37 & 63
   D. 63 & 37

5. The Atacama desert of Coastal South America running from southern Ecuador to central ______, between the Andes mountains and the Pacific Ocean:

   A. United State
   B. Chile
   C. Both (a) & (b)
   D. None of these

6. The number of primary producers within a specified area world be maximum in:

   A. Pond ecosystem
   B. Grassland ecosystem
   C. Desert ecosystem
   D. Forest ecosystem

7. Which is a primary consumer?

   A. Scavenger
   B. Saprophyte
   C. Carnivore
   D. Herbivore

8. Which of the following ecosystem has highest gross primary productivity:

   A. Grassland
   B. Coral reefs
   C. Mangroves
   D. Rain forest

9. Which ecosystem has the highest primary productivity?

   A. Pond ecosystem
   B. Lake ecosystem
   C. Grassland ecosystem
   D. Forest ecosystem

10. These belong to the category of primary consumers:

    A. Snakes and frogs
    B. Water insects
    C. Eagle and snakes
    D. Insects and cattle