DIRECTION: Carefullyobserve pictures given below and answer the follo – McqOptions

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1.	DIRECTION: Carefullyobserve pictures given below and answer the following questions. Lookat the above diagram of sewage treatment plant and answer the questions thatfollow. What is the use of skimmer?
A.	It removes sand
B.	It removes oil and grease
C.	It helps in settling solid wastes
D.	It is used as a filter
Answer» C. It helps in settling solid wastes

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