This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Environment and Health, Subject name: Social & Preventive Medicine
Sullage is - 
Select and explain. 
A. Liquid excreta, B. By product of chemical industry, C. Waste wrater from kitchen, D. Waste water from an industry
C: Waste wrater from kitchen
Answer: C: Waste wrater from kitchen 
Explanation: Ans. is 'c' i.e., Waste water from kitchen o Sewage - Waste water from a community, containing solid and liquid excreta, derived from houses, street and yard wasting, factories and industries.o Sullage - Wast water which does not contain human excreta, e.g., waste water from kitchen and bathrooms.o Sludge - Semisolid residual material left from treatment of sewage or from industries.