1.

Consider the following statements with reference to oxidation ponds :1. They require high initial investments2. They have low operational cost3. They are also called stabilization ponds.Which of the statements given above are correct ?

A. 1 and 2
B. 2 and 3
C. 1 and 3
D. 1, 2 and 3
Answer» C. 1 and 3


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