Add an alkaline compound to raise the pH to 7.2.
There are 18 protons and electrons and 22 neutrons in the atom
The correct answer for the given question would be option A. The forces that are present in the given situation above which is an elevator rising at a constant speed, are gravity and tension. Gravity is the force that pulls all matter together. Tension is the <span>pulling force transmitted axially. Hope this is the answer that you are looking for.</span>