Biology > 2021 > 23
WASSCE
The diagram below is an illustration of the growth of plant in water culture. After a few days , the solution turn green and the plant died . Use the informatin to answer question 23 and 24
What is the precaution should be taken to prevent the solution from turning green
A.
Use a non-green plant for the experiment
B.
Aerate the solution daily
C.
cover the culture vessel with opaque paper
D.
Keep cotton wool around the seedling to make it dry
Answer: C
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