Biology · PYQ NEET UG 2025
हिन्दीWhich of the following is the unit of productivity of an Ecosystem?
Correct answer · Option 4
\( (\text{KCal m}^{-2})\text{yr}^{-1} \)
Explanation
Productivity is expressed in terms of biomass or energy per unit area per unit time, such as \( \text{KCal m}^{-2}\text{yr}^{-1} \).