What is drenching?

What is drenching? Answer: Giving a liquid medication oral...

A vet Tech is in charge of the construction of a new X-ray development unit. She knows that to prevent radiation the walls must be at least 2 5/8 inches thick if gypsum sheet rock is used or 1/16" thick if sheets of lead are embedded in the wall to prevent the passage of radiation. What is the difference of thickness in the two walls?

A vet Tech is in charge of the construction of a new X-ray development unit. She knows that to prevent radiation the walls must be at least 2 5/8 inches...