Idl this plzz !
using the doppler effect, astronomers can determine a star’s
temperature
chemical composition
movement toward or away from earth
age

The answer is movement toward or away from Earth.

In astronomy, it is said that the Doppler effect tells Astronomers whether a star, or galaxy, is approaching or going away from us. It turns out the farther a galaxy is away, the faster it gets away from us - meaning that the Universe is expanding.

hope this helps :)

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.