In an experiment, the weight that mice gain is the dependent variable and the temperature of the environment is the independent variable. what must be held constant to obtain valid experimental results?

The correct answer is C:

"the type of food given to the mice"

Have a good day! :)

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.