Earth Day

Imagine a city where the air is so dirty it is hard to breathe. Imagine a lake so full of oil that no fish or wildlife can live there. Some places in the United States were like this fifty years ago. People didn't think as much about the environment back then. The environment is the air,land,and water we need to survive. Factories filled the air with smoke and pollution. Cars let off more gas fumes than they do today. Companies dumped dangerous materials into rivers. Chemicals used by farmers to grow food also damaged the soil.
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