Air quality depicting PM 2.5 is more hazardous to :

(A) Archaeological Monuments
(B) National Parks
(C) Botanical Gardens
(D) Old Men and Women

Correct Answer : Old Men and Women
Explanation : Fine particles known as PM10 and PM25 can penetrate deep into the lungs, creating health problems. People with heart or lung diseases, older adults, and children are most likely to have problems because of contact with particle pollution.
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