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

(k c a l m^{- 3}) y r^{- 1}

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g m^{- 2} y r^{- 1}

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g^{- 1} y r^{- 1}

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k c a l m^{- 2} y r^{- 1}

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Solution

The correct options are
B $g m^{- 2} y r^{- 1}$
D $k c a l m^{- 2} y r^{- 1}$
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 $k c a l m^{- 2} y r^{- 1}$ .

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Similar questions

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

i. $(k c a l m^{- 3}) y r^{- 1}$

ii. $g m^{- 2} y r^{- 1}$

iii. $g^{- 1} y r^{- 1}$

iv. $k c a l m^{- 2} y r^{- 1}$

(k c a l m^{- 3}) y r^{- 1}

g^{- 2} y r^{- 1}

g^{- 1} y r^{- 1}

(k c a l m^{- 2}) y r^{- 1}

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

i. $(k c a l m^{- 3}) y r^{- 1}$

ii. $g m^{- 2} y r^{- 1}$

iii. $g^{- 1} y r^{- 1}$

iv. $k c a l m^{- 2} y r^{- 1}$

Ecosystem	Mean biomass per unit area (kg $m^{- 2}$ )	Net primary productivity (g $m^{- 2} y r^{- 1}$ )
P	$1.6$	$500$
Q	$2.0$	$2000$
R	$44$	$2000$
S	$0.67$	$71$

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