Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions



the colour of the liquid is changed after aeration .

air is pumped into clarified water to allow the growth of aerobic bacteria .

thus, aerobic bacteria consume the waste , therefore , cleaning the water resulting in the change in colour of the liquid

0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts