Peter is in a clinical trial for a new antidepressant and thinks he's getting a "real" pill; he actually starts to feel better just because he thinks he's getting treatment. When health improves due to the healing power of belief, it's called the effect.

it is loom ps i took the test

"choosing is refusing" means individuals face an opportunity cost with each decision they make. economists state that every decision involves trade-offs. opportunity cost is the least desirable alternative given up as a result of a decision.

a. the moon was locked into orbit by the earths gravity as it was passing by and capture hypothesis i think