Suppose you are involved in the printing industry. Which conventional source of energy you would be using and for what? How is this resource affecting the lives of people in India?

Name one fuel which has been developed as an alternative to petrol and diesel for use in vehicles. Name the fossil fuel from which it is derived and is preferred than the conventional source of energy from which it is derived?

Imagine that you live in an area where a dam is being constructed. What advantages and disadvantages do you foresee once this hydro-project is completed?

Study the graphs given below showing primary source of energy for lighting in both rural and urban areas. What do you infer?