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02/11/2021 12:18 pm
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Which one of the following is not correct as regards the harmful effects of particulate matter of the size 2.5 micro meters or less?
(1) It can directly enter into our circulatory system
(2) It can be inhaled into the lungs
(3) It can cause inflammation and damage to the lungs
(4) It can cause respiratory problems
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02/11/2021 12:18 pm
Correct answer: (1) It can directly enter into our circulatory system