Question 1
What does OSHA set to protect workers against the health effects of exposure to hazardous substances?
◦ Permissible exposure limits (PELs)
◦ Acceptable exposure limits (AELs)
◦ Limit of permissible substance (LPSs)
◦ Limit of toxic substance (LTSs)
Question 2
What gas makes up 21% of Earth's atmosphere?
◦ Carbon
◦ Nitrogen
◦ Carbon dioxide
◦ Oxygen