1) Which of the following pictures are the causes of air pollution? a) wildfires b) river c) car smoking 2) Which of the following can reduce vehicle air pollution? a) one person to one car b) walking c) cycling 3) It is anything that makes the earth unhealthy... a) love b) water c) pollution 4) Air pollution happens when the ... a) water gets dirty b) air gets dirty c) land gets dirty 5) We get sick, when the air is polluted. a) True b) Fase 6) Gases released from power plants mix with water vapor in the sky to make ________________. a) global warming b) particular matter c) acid rain d) smog

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