Question

Q1: Sewage is mainly a

(a) liquid waste

(b) solid waste

(c) gaseous waste

(d) mixture of solid and gas

Q2: The aerobic bacteria can be grown in clarified water by

(a) filtration

(b) sewage

(c) aeration

(d) sedimentation

Q3: Which of the following is/are products of wastewater treatment?

(a) Biogas

(b) Sludge

(c) Both biogas and sludge

(d) Aerator​

Answer 1

Answer:

vshsjsisvdjeksbsj sorry my mistake

Answer 2

Answer:

1.) liquid waste, 2) sewage, 3) both biogas and sludge