Question

Arrange the following ecosystems in increasing order of their mean NPP(tons/ha/year).
A. Tropics deciduous forest
B. Temperature coniferous forest
C. Tropical rainforest
D. Temperate deciduous forest.

• A. B $<$ A $<$ D $<$ C
• B. D $<$ B $<$ A $<$ C
• C. A $<$ C $<$ D $<$ B
• D. B $<$ D $<$ A $<$ C

Answer 1

Answer: (D)

B $<$ D $<$ A $<$ C

Net primary productivity is the rate at which all the plants in an ecosystem produce net useful chemical energy.

So, the correct option is $B<D<A<C$