JAMB Chemistry 2002 Question 21

Question 21

Environmental Pollution

The substance least considered as a source of environmental pollution is

A.lead compounds
B.organophosphorous compounds
C.silicate minerals
D.uranium.

Show the answer and explanation

Answer: C (silicate minerals)

Explanation

Silicate minerals (sand, clay, rock) are natural, insoluble and harmless. Lead compounds, organophosphorus pesticides and radioactive uranium are all serious pollutants.