(a) Explain why a tomato plant is likely to wilt if too much fertilizer is applied to it.

(b) (i) Give two differences between electrical insulators and electrical conductors.
(ii) State two effects of illegal electrical connections in the home.

(c) Explain each of the following terms as used to describe change of state of matter:
(i) condensation;
(ii) freezing

(d) (i) State two diseases of the circulatory system in humans
(ii) Mention two ways in which each of the diseases you have stated in (d) (i) can be prevented.