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Question
Why is wastewater passed through bar screens in a wastewater treatment plant?
Options:
A .  To remove dissolved chemicals
B .  To stop the flow of insects
C .  To remove the large objects
D .  To remove microbes
Answer: Option C
:
C
In a wastewater treatment plant, the wastewater is passed through bar screens. Large objects like plastics, rags, cans, etc are filtered in this process. This process is also known as screening.
Screening is the first stage of a wastewater treatment process.

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