Question

Which of the following ecosystems is most productive in terms of net primary production?

• A. Deserts
• B. Tropical rainforests
• C. Oceans
• D. Estuaries

Answer 1

The correct option is B Tropical rainforests

Trophical rainforests have an average net primary productivity(NPP) of $1,500g/m^2/yr$. Open oceans and deserts have average NPP of $125$ and $90$ $g/m^2/yr$ respectively. Algal beds and reefs ecosystem have average NPP of $2,500$g$/m^2/$yr.