Answer:
C. Use of a semi permeable membrane.
Explanation:
This techniques improves water taste and odour. It also helps to remove contaminant from water and also impurities. it is effective and safe to use and the system is fully automated and it works as a filtration technique.
The Use of nitrogen fertilizers near the lake is your answer.
Answer:
moss hornworts seed plants
Explanation: there plants that could be in the water.
a polymer bcz it contains more than 10 residues and all others are single residues.
Answer:
I think the answer to your question is D
