Which of the following contributes to the highest rate of primary productivity?
(c) Coral reef
(d) Agricultural ecosystem
I had been asked this question by my school principal while I was bunking the class.
The query is from Ecosystem topic in portion Ecosystem of Biology – Class 12
Right answer is (b) Grasslands
For explanation I would say: The grasslands contribute to the highest rate of primary productivity. Grasslands or transitional landscapes are the open areas of land where the vegetation is dominated by grasses and other herbaceous (non-woody) plants.