In a water culture experiment, the culture solution in a transparent beaker turned green. What precaution should have been taken to prevent the culture solution from turning green? - SchoolNGR

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In a water culture experiment, the culture solution in a transparent beaker turned ...

In a water culture experiment, the culture solution in a transparent beaker turned green. What precaution
should have been taken to prevent the culture solution from turning green?

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A Changing the culture solution regularly
B Increasing the number of times the culture is aerated
C Covering the transparent beaker with black cloth
D Adding warm alcohol to bleach the green colour
E Sterilizing the beaker in a hot oven before use

Correct Answer: Option C

Explanation:

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