A phenomenon of group dynamics that results in a decrease in one's willingness to help others as the size of the group increases is referred to as

"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.

fir trees are found in areas with cooler climates. fir trees have needles for leaves and remain green year-round.