Suresh went to his grand parents in a village, during summer vacations. There, to his great surprize he found that the village people are using cow-dung cakes and firewood as fuel for cooking Suresh advised his grand parents that the villagers should not waste the cow-dung by using it as a fuel for cooking but instead use it for producing biogas.
Answer the following questions based on above information.
(i) Why is biogass is better as a fuel than cow dung cakes.
(ii) What steps are to be taken to propagate this message in the village.
(iii) What values were exhibited by Suresh.
