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# Which of the following is most productive?

$\begin{array}{1 1}(a)\;\text{Tundra}\\(b)\;\text{Coniferous forest}\\(c)\;\text{Deciduous forest}\\(d)\;\text{Tropical rain forest}\end{array}$

Can you answer this question?

Tropical rain forest
Hence (d) is the correct answer.
answered Mar 27, 2014