Q1: The liquid wastes from kitchens, bath rooms and wash basins, is not called

ANS:C - sewage

The liquid wastes from kitchens, bathrooms, and wash basins are not called sewage. These liquid wastes are commonly referred to as sullage or graywater. Sullage refers to the wastewater generated from domestic activities such as washing dishes, clothes, and bathing. It contains relatively low levels of contaminants compared to sewage, which includes wastewater from toilets and other human waste sources. Therefore, the liquid wastes from kitchens, bathrooms, and wash basins are specifically termed as sullage or graywater, distinct from sewage, which primarily consists of human waste and wastewater from toilets.