Which particles are responsible for causing the greatest harm to human health ?
A. Particulates with size 1.00 micrometres in diameter.
B. Particulates with size of 10 mm.
C. Particulates with size 2.5 micrometres or less in diameter.
D. Particulates with size of 100 micrometres in diameter
Answer:C
Which particles are responsible for causing the greatest harm to human health ?
A. Particulates with size 1.00 micrometres in diameter. B. Particulates with size of 10 mm. C. Particulates with size 2.5 micrometres or less in diameter. D. Particulates with size of 100 micrometres in diameter