xvi.2. Conclusion
Microbes are an essential part of life on Earth. Not all bacteria are harmful. Several bacteria are extremely beneficial to humans.
We virtually always use microorganisms and microbially generated goods.
From making curd and alcohol to cleaning up the environment, the role of microbes in human welfare is very important.
Microbes have been utilised for more than a century to treat sewage (wastewater) through the process of activated sludge formation, which aids in the recycling of water in nature.