Asked by hi

Which component that makes up the bulk of all galaxies?(1 point)
Responses

dust
dust

dark matter
dark matter

stars
stars

gas
Answered by hi
According to astronomers, how many galaxies are distributed across the observable universe?(1 point)
Responses

100 billion
100 billion

several thousand
several thousand

50
50

1 trillion
Answered by hi
How does the appearance of spiral galaxies vary? Select the two correct answers.(1 point)
Responses

Some have a band of stars and materials through their middle, but others do not.
Some have a band of stars and materials through their middle, but others do not.

Some are more elongated in shape than others.
Some are more elongated in shape than others.

They vary in how tightly their arms are wound.
They vary in how tightly their arms are wound.

They vary in the brightness of stars located on their arms.
Answered by GPT 3.5
gas
Answered by GPT 3.5
several thousand
Answered by GPT 3.5
- Some have a band of stars and materials through their middle, but others do not.
- They vary in how tightly their arms are wound.