Question

is the following statement true or false:
\the milky way galaxy has no well - defined edge.\
○ true
○ false
question 7
1 pts
is the following statement true or false:
\there are so few stars born within the bulge of the milky way galaxy due to the relatively
low amount of gas and dust there.\
○ true
○ false
question 8
1 pts
what is dark matter?
○ regular matter that is extremely hot and glows with a black color.
○ regular matter that has a black color such that we cant see it in the sky.
○ large collection of anti - matter present within the halo of all galaxies.
○ matter that is inferred to exist due to its gravitational influence on the universe.

Explanation:

• First statement: The Milky Way's stellar density gradually decreases outward without a sharp boundary.
• Second statement: The bulge has old stars but low star formation because gas/dust (star-forming materials) are scarce there.
• Dark matter is inferred from gravitational effects (e.g., galaxy rotation curves) as it does not emit detectable electromagnetic radiation.

Answer:

1. True
2. True
3. Matter that is inferred to exist due to its gravitational influence on the universe.