What do you call the part of an experiment that does not receive the variable and is used for comparison?

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute

Producing disposable grocery bags consumes resources. recycling disposable bags is a solution that can recover some of the resources used to make new bags. which of the following behaviors could further refine the solution? a. disposing of bags by burning them b. reusing bags whenever possible c. using bags at once so that they do not break d. using only nonrenewable materials to make new bags subject is environmental science for apex users

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