Answer:
d. Mass is the amount of matter in an object.
Explanation:
This is the exact definition of the word mass. My mom is a science teacher.
These are the Kepler's laws of planetary motion.
This law relates a planet's orbital period and its average distance to the Sun. - Third law of Kepler.
The orbits of planets are ellipses with the Sun at one focus. - First law of Kepler.
The speed of a planet varies, such that a planet sweeps out an equal area in equal time frames. - Second law of Kepler.
Maybe the word could be converted?
