III. Fill in each blank of the following passage with one suitable word. Air pollution can (1) _______ people ill. Consequently, some countries (2) _______ laws to control the quality of smoke (3) _______ the air. Air pollution causes particular damage to the body (4) _______ harming the lungs. Leads should not (5) _______ used in petrol because it is bad for children's (6) _______ and make them clumsy in using (7) _______ hands. Poisonous gas from lead collects in those parts of cities where (8) _______ are tall buildings. Pollution can also have (9) _______ influence on the earth's climate. The (10) _______ may melt near the North and South Poles, resulting in very bad floods