the answer is 40.5 because you have to multiply the density and volume of the object to get the mass.
Answer:
4-mid ocean ridge at divergent plate boundaries.
Answer: Protons
Explanation: The atomic number is the number of protons that are in the nucleus of an atom. Each element on the periodic table is defined by the number of protons. In other words, the protons/atomic number determines what element it is. Protons carry a positive charge.
