Answer:
Silicon dust has little adverse affect on lungs and does not appear to produce significant organic disease or toxic effects when exposures are kept beneath exposure limits. Silicon may cause chronic respiratory effects. Crystalline silica (silicon dioxide) is a potent respiratory hazard.
D) all these answers are correct
Answer:search definitions
Explanation:
Answer: Your answer would be D
Explanation: Sorry if i get it wrong ! (but good luck and make sure to rate)
