(a) (i) What is a magnetic field?
(ii) Name two methods of making magnets

(b) Explain briefly the term teenage pregnancy

(c) Write the formula for each of the following compounds:
(i) calcium chloride;
(ii) copper (I) oxide;
(iii) nitrogen (IV) oxide;
(iv) ammonia

(d) (i) List three physical properties of soil.
(ii) What is the texture of clayey soil?