A non-renewable sources of energy is:

The calorific value and ignition temperature of fuel A are 55 kJ/g and 80oC, respectively. These values for fuel B are 80 kJ/g and 10°C, respectively. On burning, the fuel A produces CO₂ and H₂O while the fuel B produces CO₂, CO and SO₂. Give three points of relative advantages and disadvantages of these two fuels.

An example of a renewable sources of energy is :

Which of the following is not a renewable sources of energy?

A good fuel is one which process :