Question

Which one of the following is not a method of sewage disposal?
(a) Septic tanks
(b) Composting pits
(c) Chemical toilets
(d) Aerator

Answer 1

Answer:

Answer D

Explanation:

Because septic tanks, compositing pits and chemical toilets are used for sewage disposal

Answer 2

Answer:

The correct answer is option (d) Aerator.

Explanation:

• A septic tank is an underground chamber made of cement, fiberglass, or plastic through which homegrown wastewater streams for fundamental sewage treatment.
• A chemical toilet gathers human waste in a tank and uses synthetically produced substances to limit scents arising from the waste.
• A pit made to create excrements and prolific substances by the most common way of unloading the rotting biodegradable substances is known as a compost pit.

All of these are sewage disposal methods or techniques except Aerator.

Hence, Aerator is the correct answer