(a) (i) What are stars?
(ii) Arrange in order, starting from the sun, the first four planets in the solar system.

(b) (i) State two differences between plants and animals;
(ii) two similarities between plants and animals

(c) Explain each of the following farming systems:
(i) pastoral farming
(ii) ecological farming

(d) State the properties of water in terms of
(i) odour,
(ii) taste,
(iii) effect on litmus