Question

Which of the following CANNOT be determined by looking at the spectra of a star? *
A:temperature
B:composition (the elements that make up the star)
C:movement toward or away from Earth
D:distance from Earth

Answer 1

Answer:

A:temperature

Explanation:

The temperature cannot be determined by looking at the spectra of the star due to lack of the equipment for its measurement. On the other-hand, the remaining statements like the distance from earth, movement towards or away from earth can be determined.