Viruses and Monerans: Bacteria in Our Lives

Bacteria, often associated with disease, play crucial roles in various beneficial processes. They are essential in food production, such as in making cheese and yogurt. Bacteria also contributed to the formation of fossil fuels millions of years ago. In the human body, they aid digestion and help fight diseases. Additionally, bacteria are used to produce antibiotics, which combat infections. In wastewater treatment plants, bacteria break down waste, preventing environmental damage.

What role do bacteria play in wastewater treatment plants?

What environmental issues were caused by the lack of treatment plants before their development?