(a) Write the systematic name for each of the following compounds:(i) H2O
(ii) MgO
(iii) CaO
(iv) CaCl2

(b) Name the instrument used in measuring the following:
(i) length of a rope
(ii) mass of a stone
(iii) temperature of a liquid
(iv) volume of a liquid

(c) List three factors that influence vegetable crop production.

(d) Name four stages in the life cycle of a flowering plant.