| (i) Deserts and deep lakes show least productivity. |
| (ii) 10g by mass is passed to the next trophic level in the food chain. |
| (iii) Most productive ecosystem is coral reef. |
| (iv) Sugarcane is the most productive crop. |
| Choose the correct option. |
A) (i) and (iv)
B) (i) and (iii)
C) (ii) and (iii)
D) (i), (iii) and (iv)
Correct Answer: D
Solution :
[d] (i) Deserts have the lowest primary productivity as the soil is deficient in moisture. (ii) Some plants have more efficiency to trap sunlight (sugar cane), so they accumulate more primary productivity. (iii) Productivity is maximum in the coral reefs because they grow in areas having good light, enough warm water and abundant nutrients.
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