Q. Explain the process of waste water treatment? Ans: The wastewater is treated through physical, chemical, and biological processes to remove the physical, chemical and biological contaminants. Physical - separates the large waste Biological- Adding of microorganisms to digest waste and produce oxygen in water Chemical- Chlorine and other chemicals are added into the water to finally purify it. Q. what is sewage? Ans: Wastewater is generated during various activities in homes, industries, hospitals, offices, and laundry services etc. This waste water is called sewage. Q. Explain the vercomposting toilet ? Ans: Vermicomposting toilets are those which do not use water and are very environment friendly. They can be utilized in areas where water is a scarcity and can also be used in forests and other areas where sewage lines have not been built. This process uses worms for decomposition of waste. The waste is degraded in a container. Q. what are the p
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