1) What is the main cause of air pollution? a) Trees and forests b) Vehicles and factories c) Clean energy sources d) Rain and wind 2) Which of the following is NOT a type of pollution? a) Air pollution b) Water pollution c) Sound pollution d) Fire pollution 3) What is a harmful effect of water pollution?  a) Cleaner rivers b) More fish in the sea c) Harm to marine life and drinking water d) Faster water flow 4) Which material takes the longest time to decompose? a) Banana peel b) Paper c) Plastic bottle d) Cottom 5) What is one way to reduce pollution? a) Throwing trash into rivers b) Burning plastic c) Using reusable bags and bottles d) Driving more cars

pollution*

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