I believe the control group is what doesn't change in the experiment, and the experimental group is what is being tested / receives the treatment :)
Physical science , earth science,and life science are the branches of natural science
B Im sirloin steak so I think that’s the answer
Protons: charge +1, have a mass of 1 and are found in the nucleus
Neutrons: charge 0, have a mass of 1 and are found in the nucleus
Electrons: charge -1, have a mass of 1/840 and are found on the outside of the nucleus
hope that helps