The traditional recommendation was that everyone should consult with their doctor before they started to exercise. The reason behind this is that, in theory, when you start to participate in a moderate or intense activity, there is a slightly increased risk of a heart attack or cardiac complications.
C- to describe the amount of movement required for maximal exertion
Answer:
(A) I say no and walk away.
(B) I don't drink the alcohol
(C) I don't buy it.
(D) I tell them get out of my house.
Explanation:
You do it before a lab so as to prevent contamination of the materials. You might have things on your hands that might contaminate the experiment and the research. You do it after because you don't want to have things from your experiments on your hands because that can be extremely dangerous.
