Q. Particulate matter of which size causes greatest harm to human health? (Solved)
1. 2.5 micrometer or less in diameter
2. More than 2.5 micrometer
3. More than 3.5 micrometer
4. Less than 3.5 micrometer
- a. 2.5 micrometer or less in diameter
1. 2.5 micrometer or less in diameter
2. More than 2.5 micrometer
3. More than 3.5 micrometer
4. Less than 3.5 micrometer