1) Dirty air from smoke or gases. a) air pollution b) water pollution 2) When water in rivers or seas becomes dirty and unsafe. a) deforestation b) water pollution 3) Using too much energy. a) energy waste b) polluted beaches 4) Cutting down forests. a) deforestation b) animals facing extinction 5) When beaches are dirty because of trash or waste. a) polluted beaches b) global warming 6) When ice melts because the Earth is getting hotter. a) melting ice b) pollution

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