1. Many rivers and lakes are poisoned. Factories produce waste and pour it into rivers and lakes. (because) …………………………………………………………………………………………………….. . 2. The environment is polluted. Birds leave their habitats and plants die. (makes) …………………………………………………………………………………………………….. . 3. Plastic bags are a major source of waste. We should not throw plastic bags everywhere. (so) …………………………………………………………………………………………………….. . 4. The food is contaminated. People’s health is poor. (results in) …………………………………………………………………………………………………….. . 5. Factories release fumes. The air people breathe gets polluted. (due to) …………………………………………………………………………………………………….. . giúp em đi anh chị