Which is most useful in classifying stars
1. Knowing the color and brightness of a star.
2. Knowing the movement of a star.
3. Knowing the size of a star.
4. knowing the apparent magnitude of the star.
1. Knowing the color and brightness of a star.
How does spectroscopy provide evidence for the Big Bang theory?(1 point)
Responses
The intensities of peaks show that galaxies are moving away from each other.
The intensities of peaks show that galaxies are moving away from each other.
The intensities of peaks show that galaxies are moving toward each other.
The intensities of peaks show that galaxies are moving toward each other.
The red shift shows that galaxies are moving toward each other.
The red shift shows that galaxies are moving toward each other.
The red shift shows that galaxies are moving away from each other.