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Why is there a great concern about the 'microbeads' that are released into environment?
A
(A)
They are considered harmful to marine ecosystems.
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B
(B)
They are considered to cause skin cancer in children.
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C
(C)
They are small enough to be absorbed by crop plants in irrigated fields.
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D
(D)
They are often found to be used as food adulterants.
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