The process used for refining of petroleum is known as:

1. evaporation
2. filteration
3. distillation
4. fractional distillation

Identify the incorrect statement/s about solar panels.

(i) The running costs of solar panels is very high.

(ii) They do not cause any pollution.

(iii) They last over a long period of time.

1. (i)
2. (ii)
3. (iii)
4. (i) and (iii)

State two characteristics which a source of energy must have.

Select the renewable and non-renewable sources of energy from the following —

(a) Coal
(b) Wood
(c) Water
(d) Diesel
(e) Wind
(f) Oil