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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
What is primary productivity?
Write the equation that helps in deriving the net primary productivity of an ecosystem.
Distinguish between primary and secondary productivity.
What is primary 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.
Secondary productivity is rote of formation of new organic matter by ______.
The biomes energy available for consumption by herbivores is called ______.
Which one of the following ecosystem is most productive in term of net primary production?
How much of the net primary productively of a terrestrial ecosystem is eaten and digested by herbivores?
Which one of the following ecosystem has the highest annual net productivity?
Productivity is the rate of production of biomass expressed in terms of ______.
Why is the rate of assimilation of energy at the herbivore level called secondary productivity?
Primary productivity varies from ecosystem to ecosystem. Explain?
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
Primary productivity in an ecosystem refers to the rate of generation of ______.
