Fill in the blanks:(a) Fossil fuels are ........................... and............... .(b) Process of separation of different constituents from petroleum is called................(c) Least polluting fuel for vehicles is..............
Tick true/false against the following statements.(a) Fossil fuels can be made in the laboratory.(b) CNG is more polluting fuel than petrol.(c) Coke is almost pure form of carbon.(d) Coal tar is a mixture of various substances.(e) Kerosene is not a fossil fuel.
The following table shows the total power shortage in India from 1991-1997. Show the data in the form of graph. Plot shortage percentage for the year on the y-axis and the year on axis.