(a) Name the major raw materials used in the manufacture of the following: (i) polythene (ii) margarine (iii) cement (b) State one problem associated with o...
(a) Name the major raw materials used in the manufacture of the following:
(i) polythene
(ii) margarine
(iii) cement
(b) State one problem associated with oil producing areas
(a) Major raw materials
Product
Major raw material
(i) Polythene
Ethene (ethylene), obtained from the cracking of petroleum fractions
(ii) Margarine
Vegetable oil (unsaturated oil) together with hydrogen gas (hardened by hydrogenation)
(iii) Cement
Limestone (calcium trioxocarbonate (IV)) together with clay
(b) One problem associated with oil producing areas
Environmental pollution caused by oil spillage, which destroys aquatic life, farmland and drinking water. (Air pollution from gas flaring is also acceptable.)
Ethene (ethylene), obtained from the cracking of petroleum fractions
(ii) Margarine
Vegetable oil (unsaturated oil) together with hydrogen gas (hardened by hydrogenation)
(iii) Cement
Limestone (calcium trioxocarbonate (IV)) together with clay
(b) One problem associated with oil producing areas
Environmental pollution caused by oil spillage, which destroys aquatic life, farmland and drinking water. (Air pollution from gas flaring is also acceptable.)