Petrol being a natural resource of energy, is also a non_renewable source. So a day will come when they will be no petrol left as the rate at which we use it is much more than the rate at which it is formed . and then there will be nothing left for the future generations. So we need to use petrol judiciously.
Petrol is the exhaustable and non-renewable resource.Nowadays we are using more and more petrol.It takes thousands of years for the formation of petrol.If we go on use petrol in the same way the future generations will suffer alot without petrol.It's our duty to reduce wastage and usage of petrol. So we must use petrol judiciously. Hope this helps you