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Question : Productivity is the rate of production of biomass expressed in terms of: (i) (kcal m^(-3))yr^(-1) (ii) g^(-2)yr^(-1) (iii) g^(-1)yr^(-1) (iv)(kcalm^(-2))yr^(-1)

Answer»

ii 
iii 
ii and iv 
i and iii 

Solution :It is the AMOUNT of biomass or organic matter produced by per unit area over a time period by plants during PHOTOSYNTHESIS.
It is expressed in terms of weight `(g^(-2))` or ENERGY `(kcal m^(-2)) YR^(-1)`.


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