(a) (i) Define each of the following terms:
(a) Solvent
(ß) Solute
(ii) Name one common solvent used in the home.

(b) Explain the following terms as used in animal production:
(i) Dehorning
(ii) Ration;

(c) (i) What is an element
(ii) Write down the symbol of each of the following chemical substances:
(a) Potassium
(ß) Sulphur

(d) Explain each of the following terms:
(i) Mixed farming
(ii) Mixed cropping