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

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.

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).