Nikhil and Neha went to a remote village in Kerala to meet their grandmother. They were surprised to see a biogas plant in Mr. Nair’s house in the neighbourhood. There were plenty of livestocks and the household used cooking gas from the plant. Also their farms had rich vegetation. They contacted sarpanch of the village and convinced him to set up a biogas plant for village community. (a) Mention the values displayed by Mr. Nair, Nikhil and Neha. (b) Explain the possible arguments given by Nikhil and Neha to the sarpanch to convince him to set up community biogas plant. -Science