When an apple is cut, oxygen comes in contact with the fruit’s inner tissue and browning occurs. one particular enzyme in the apple cells, polyphenol oxidase, begins breaking down the tissue. this process may be the plant’s way of keeping pests away from a cut or broken area. what could you do to stop this browning action?

not put in the oxygen or put lemon juice on it

Explanation: when it hits the air the Browning action so you dont put in the air or you put lemon juice on it .

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.

the answer is d. none of the above