1.

5. Put the correct sequence in water treatment.1. Grit and sand removal tank2. Bar screens3. Clarified water4. Activated sludgeO A. 2, 3, 4, 1O B. 2, 1,4,3O C..3, 1, 4,2O D. 4, 2, 1,3​

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ANSWER:

B .2,1,4,3 this is your answer



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