The hypothesis for jamie's experiment is "if temperature increases, then the rate at which ice melts will increase." which of the following is the independent variable?

Temperature

Explanation:

A dependent variable is the one that depends on some other variable. It changes with the changes in other variable. I above hypothesis, the rate at which the ice melts is a dependent variable because it depends on the change in temperature.

Independent variable is the one that is independent and takes no effect from other variables. Instead they have an effect on other variables. In the above hypothesis, the temperature is an independent variable that is effected by nothing.

"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.

the first question's answer is a.