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? options: a- the weight of the mice b- the color of the mouse cages c- the type of food given to the mice d- the temperature of the laboratory rooms

A) The weight of the mice.

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the