Large quantities of sewage is generated every day in cities and towns, which is treated in Sewage Treatment Plants (STPs) to make it less polluted. Given below is the flow diagram of one of the stages of STP.Observe the given flow diagram and answer the questions accordingly.

The technology of biogas production from cow dung was developed in India largely due to the efforts of :

Options

A. Gas authority of India
B. Oil and Natural Gas Commission
C. Indian Agriculture Research Institute, Khadi and Village Industries Commission.
D. Indian Oil Corporation

Answer

C

Explanation

Indian Agriculture Research Institute, Khadiand Village Industries Commission.