Question

i want this answer plz help me​

Answer 1

Explanation:

A) Mass of a substance is the amount of matter contained in a body . ... Mass of a body on Mars will numerically be equal to what it was when it was on Earth since the matter contained by that body cannot change . But weight will vary depending on the gravitational force exerted on the body.

B)

Answer 2

Answer:

please can I get your introduction