Question

For biogas production, besides dung an extensive use of which weed is recommended in our country

• A. Mangifera indica
• B. Hydrilla
• C. Eichhornia crassipes
• D. Solanum

Answer 1

The correct option is C Eichhornia crassipes

Eichhornia crassipes is an excellent source of biomass because of its extremely high rate of development. One hectare of standing crop thus produce more than 70,000 m${}^3$ of biogas.

Thus, the correct answer is option C.