Spillage of cleaning fluid on a food-preparation area is an example of physical contamination.
a. true
b. false

Exercise has no positive effects on the nervous system? true or falseu

If a person has a bad pain in their back, specifically lower back a bit above the hip, what should they do besides going to the doctor? what remedies could they use?

Which of the following is not a fitness benefit of cycling a: very effective at burning fat b: provides an upper body workout c: provides an aerobic workout d: good exercise for out of shape people