What is the potential for harm or adverse effect on an employee's health?​

Any sound above what db can cause hearing loss in human beings

Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%

Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise? 1.b,2.c,3.a,4.d