Environmental Engineering
The main disadvantage of oxidation pond is that

None of these
Maintenance and operation cost are high
Large area is required for construction
BOD removal is very low

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Environmental Engineering
Assertion A: The consumption of water increases with increase in the distribution pressure.Reason R: Higher distribution pressure causes more loss and waste of waterSelect your answer according to the coding system given below

A is true but R is false
Both A and R is true but R is not the correct explanation of A
A is false but R is true
Both A and R is true and R is the correct explanation of A

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