Question

Q. 2. Two methods
of
Sewage
treatment are given
below which one
is you
think right and why?
(a)Man made technology
(b) Microbes treatment
method.​

Answer 1

Answer:

MICROBES TREATMENT METHOD

Explanation:

The contents of the tank are mixed mechanically with air or air is bubbled through the tank. The microbes then use the organic material in the sewage as their source of carbohydrate for respiration. The oxygen in the air allows the microbes to respire aerobically