Since all stars begin their lives with the same basic composition, what characteristic most determines how they will differ?
a. location where they are formed
b. luminosity they are formed with
c. the color they are formed with
d. the mass they are formed with

the correct option is D(the mass they are formed with).

Explanation:

The formation of star occurs due to accumulation of gas and dust which collapses due to gravity and starts to form stars. The components of star includes:

- hydrogen( which is converted to helium in the cores of the star),

- carbon,

- nitrogen,

- oxygen and

- iron

All stars begin their lives with the same basic composition, but the characteristic that most determines how they will differ is

the mass they are formed with since most stars have small amounts of heavier elements( carbon, nitrogen, oxygen, iron) than others.

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it