Question

what will it's answer ​

Answer 1

Explanation:

The density of oil is less than the density of water .

So if oil is thrown open in water it will float on the surface of water and the aerobic bacteria will die in the drain which will cause many problem

Answer 2

Answer:

This is due to 2 reasons.

Explanation:

1). Used oil generally carries micro organisms or various small particles which increases the viscosity of the drain.

2). Oil creates a layer over the drain water due to which the aeroboc reaction terminates and only anaerobes participate in fermentation. Low oxygen results in low degradation of faecal matter.