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प्रश्न
Why are oceans least productive?
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उत्तर
Oceans are the least productive because
- There is insufficient radiation as sunlight decreases with the increasing depth of the ocean.
- Oceans are nitrogen deficient which is an important nutrient for plants.
- Conditions oi high salinity which is not favourable for all plants.
- There is no substratum to support plants.
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संबंधित प्रश्न
How are productivity, gross productivity, net primary productivity and secondary productivity interrelated ?
Distinguish between primary and secondary productivity.
Why does primary productivity vary in different types of ecosystems?
Explain what does the equation given below show :
NPP = GPP – R
Answer the following question.
Describe the inter-relationship between productivity, gross primary productivity, and net productivity.
Write the relationship between productivity, gross primary productivity, net primary productivity, and secondary productivity.
The biomes energy available for consumption by herbivores is called ______.
How much of the net primary productively of a terrestrial ecosystem is eaten and digested by herbivores?
If A = Gross primary productivity, B = Net primary productivity and C = Respiration losses, then what will be the correct relation between them?
Productivity is the rate of production of biomass expressed in terms of ______.
Which of the following ecosystems is most productive in terms of net primary production?
Justify the pitcher plant as a producer.
Primary productivity varies from ecosystem to ecosystem. Explain?
Justify the following statement in terms of ecosystem dynamics. “Nature tends to increase the gross primary productivity, while man tends to increase the net primary productivity”.
Which of the following ecosystems will be more productive in terms of primary productivity? Justify your answer. A young forest, a natural old forest, a shallow polluted lake, alpine meadow.
The primary productivity in an ecosystem is expressed as ______.
- gm-2 yr-1
- gm-2 yr
- Kcal m-2 yr-1
- Kcal m-2
Which of the following is the unit of productivity of an Ecosystem?
