Question

One objective please :-

Answer 1

I think the answer is d) aerator. It is because aerators are devices used for aeration, or mixing air with another substance, such as soil or water. These devices are used to add oxygen to the water.

Answer 2

Here is your answer

c) Chemical toilets

REASON: It is a toilet that is not connected to a sewage system but has a compartment in which waste is treated with chemicals for temporary storage.

HOPE IT IS USEFUL