Mohs hardness scale. hope this helps
Its good for a scientist to be skeptical because they dont willingly accept new ideas without thoroughly going over the research themselves and attempting to disprove a theory. skeptical scientists often reveal new information through doing their own examinations of a concept, which is why they are valuable scientists
The correct answer to this is (A. Units Only).
It shows that there is a velocity of 35, but the units are missing.
