Answered

Q1.Which of the following practices is not a healthy practice for drainage system?

Choose an option:

1.Properly flush indisposable materials

2.Keeping the drains covered

3.Make sloppy drains

4.Pipeline of drains should not be blocked

Answer :

paras
make sloppy drains  practice is not a healthy practice for drainage system

nandish
1.Properly flush indisposable materials

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