Question
Complete the paragraph by properly re-arranging the given sentences (P, Q, R), without disturbing the first and the last sentence.
S1 The growing industrialization and multiplying means of transport are most hazardous to air pollution.
S2
S3
S4
S5 Besides, air pollution is responsible for respiratory ailments, T.B., eye ailments, even cancer and mental retardation of children.
P - The exhaust of carbon monoxide and nitrogen etc. from our automobiles is further worsening the state of air pollution.
Q - The emission of smoke, coal dust, toxic chemicals radioactive wastes etc. from the chimneys of factories is causing a lot of air pollution.
R - The excessive presence of dangerous chemicals in the atmosphere sometimes causes acid rains which are injurious to soil, vegetation and water species.