Question

Productivity is the rate of production of biomass expressed in terms of:

i. $\left(kcal{m}^{–3}\right)y{r}^{–1}$

ii. $g{m}^{–2}y{r}^{–1}$

iii. $g^{–1}y{r}^{–1}$

iv. $kcal{m}^{–2}y{r}^{–1}$

• A. ii
• B. iii
• C. ii and iv
• D. i and iii

Answer 1

The correct option is C

ii and iv

The rate of production of biomass or organic matter per unit area in an ecosystem is defined as productivity and is expressed as $g{m}^{–2}y{r}^{–1}$ or $kcal{m}^{–2}y{r}^{–1}$.