Question

Lola makes a list of what she learned about spiral galaxies. 1. They are made of bulges and arms 2. The bulges contain mostly old red stars . 3. The arms contain mostly old blue and blue -white stars 4. Spiral galaxies are made of gas and dust . Which statement does Lola need to correct, and why?

Answer 1

Answer:

statement 3

Explanation:

Answer 2

Answer:

Option (3)

The arms mostly contains old blue and blue-white stars

Explanation:

Spiral arms are the regions in stars extending from the middle of spiral galaxies and the barred spiral. Those long, thin areas look like a spiral and therefore give their name to spiral galaxies.

Spiral arms, though, include many young, blue stars, that render their arms so bright (due to the high mass density and the fast stellar forming rates).