Question

What's mass?

O A. The sum of the number of protons and
neutrons in an atom
B. A measure of the amount of matter an
object contains
C.A measure of an element's attraction
for electrons
O D. The force that gravity exerts upon an
object

Answer 1

The answer is B because Mass is the measure of the amount of matter an object contains

Answer 2

it is B:) Have a great day!