What is a good solution for a dirty park?, Break benches, Throw litter, Pick up trash, Ignore it, What causes air pollution?, Cleaning streets, Car smoke, Riding bikes, Planting trees, How can we help a dirty playground?, Clean it, Paint walls, Add trash, Close school, What should we do with dirty water?, Leave it, Waste more, Drink it, Filter it, What can reduce traffic?, Drive alone, Use buses, Buy more cars, Block roads, What is a problem in a dirty park?, Clean paths, Fresh flowers, Litter everywhere, Green grass, Which action helps stop pollution?, Recycle waste, Drop bottles, Waste water, Burn plastic, Why is a dirty playground bad?, Games improve, Water gets clean, Air gets fresh, Children get sick, What keeps water clean?, No dumping, Factory leaks, Plastic waste, Oil spills, Which is an eco-friendly way to travel?, Idle cars, Ride a bike, Drive daily, Honk more

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