Q. 5.     Compare and contrast bio-mass and hydro electricity as sources of energy.

Answers (1)
Biomass Hydro electricity
(i) Renewable source of energy.

(i) Renewable source of energy.

(ii) Biomass plants can be installed anywhere.                               (ii) Hydro power plants can be installed only in fast flwoing water bodies.
(iii) Not very economical to collect the organic waste (biomass) required. (iii) Once the plant is set up harnessing of energy is very economical.

 

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