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Productivity is the rate of production of biomass expressed in terms of
(i) $\left(\mathrm{kcal} \mathrm{m}^{-3}\right) \mathrm{yr}^{-1}$
(ii) $\mathrm{g}^{-2} \mathrm{yr}^{-1}$
(iii) $\mathrm{g}^{-1} \mathrm{yr}^{-1}$
(iv) $\left(\mathrm{kcal} \mathrm{m}^{-2}\right) \mathrm{yr}^{-1}$
Options:
(i) $\left(\mathrm{kcal} \mathrm{m}^{-3}\right) \mathrm{yr}^{-1}$
(ii) $\mathrm{g}^{-2} \mathrm{yr}^{-1}$
(iii) $\mathrm{g}^{-1} \mathrm{yr}^{-1}$
(iv) $\left(\mathrm{kcal} \mathrm{m}^{-2}\right) \mathrm{yr}^{-1}$
Solution:
2035 Upvotes
Verified Answer
The correct answer is:
(ii) and (iv)
(ii) and (iv)
The rate of production of biomass or organic matter by any trophic level per unit area over a time period is productivity. It is expressed/measured in term of weight (e.g., gm/m2/yr2) or energy (e.g., kcal $/ \mathrm{m} 2 / \mathrm{yr}$ ).
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