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Question
Which of the following could be used in purification of sewage?
Which of the following could be used in purification of sewage?
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Solution
The correct option is D Unicellular green algae
The algae can be used for the purification of the waste water along with the bacteria and fungi. Chlorella is the species of the unicellular green algae which is commonly used for the purification of the sewage water. Scenedesmus is another species of algae which is used for the treatment of the waste water. These algae can multiply fast and help in removing the wastes. Thus, the correct answer is option C.
The algae can be used for the purification of the waste water along with the bacteria and fungi. Chlorella is the species of the unicellular green algae which is commonly used for the purification of the sewage water. Scenedesmus is another species of algae which is used for the treatment of the waste water. These algae can multiply fast and help in removing the wastes.
Thus, the correct answer is option C.
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