Water is extracted from a river for use in a domestic water supply. Some treatments for domestic water are listed. - chlorination - sedimentation and filtration - treatment with carbon Which statement about these treatments is correct?
A.
Filtration is used to remove soluble substances.
B.
Treatment with carbon is used to remove unpleasant odours.
C.
Chlorination is used to remove unpleasant tastes.
D.
Sedimentation is used to kill microbes.
Exam No：0620_s24_qp_13 Year：2024 Question No：30
Answer:
B
Knowledge points:
10.2.1. State that ammonium salts and nitrates are used as fertilisers
10.2.2. Describe the use of NPK fertilisers to provide the elements nitrogen, phosphorus and potassium for improved plant growth
Solution:
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