(a) (i) What is indiscriminate sex?
(ii) Give two reasons why teenagers indulge in indiscriminate sex.
(b) Name two sources each of
(i) natural light
(ii) artificial light
(c) State three ways in which soil texture is important in crop production.

(d) Write down the systematic name of each of the following chemical compounds:
(i) FeS
(ii) CO
(iii) Cu2O
(iv) NaOH