If the coliform bacteria is present in a sample of water, then the coliform test to be conducted is_____________?
A. 1) presumptive coliform test
B. 2) confirmed coliform test
C. 3) completed coliform test
D. The correct answer is ?
The per capital consumption of a locality is affected by_________________?
A. 1) climatic conditions
B. 2) quality of water
C. 3) distribution pressure
D. The correct answer is?