Question

1. Water should not be left open and stagnant in a place because microorganisms may grow in it.
If it is not possible to remove water from that place, oil can be poured over it. Can you think of a
reason for this?
​

Answer 1

Answer:

If water is left open and stagnant in a place microorganisms grow. To avoid the growth of microorganism, oil is poured into the water and because of the light nature of oil, it forms a layer over water which restricts the microorganism to develop in it and hence growth of microorganisms are blocked.

Explanation:

HOPE IT HELPS!.

MRARK ME AS A BRAINLIEST.