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A solvent used to clean tools causes skin and respiratory irritation. What two control methods could be implemented before requiring PPE?

Using PPE should always be the first step in protecting workers from a hazard.

Replacing a solvent-based paint with a water-based paint is an example of substitution.

A construction crew uses a loud pneumatic nail gun. The supervisor assigns shifts so workers are only exposed for 2 hours per day. This is an example of:

A painter must use a ladder to reach an elevated surface. He should use an engineering control —such as a mobile scaffold —and an administrative control —such as ladder safety training.

A saw operator complains of vibration-related hand injuries. What control follows the hierarchy appropriately?

Write your five-paragraph essay in first person here. 

In which medium would diffusion happen most rapidly?

IMG_7777.jpeg What would the optimal (best) pH be for the enzyme labeled “A” in the graph above?

IMG_7776.jpeg What gas was collected at the top of the tube in the yeast fermentation experiment? Answer:[BLANK-1]