Go through the passage and respond to the given questions.
A clean environment is crucial for maintaining health and well-being. Dirty surroundings, garbage, and polluted water become breeding grounds for germs, mosquitoes, and flies that spread diseases like malaria, cholera, and dengue. Proper waste disposal, clean water, and personal hygiene play a big role in preventing illness. Incinerating plastic and fossil fuels deteriorates air quality, whereas planting trees enhances it by generating oxygen.
1. Dirty water is a major cause of diseases such as:
2. What does a low AQI (0–50) indicate?