With which type of galaxy is a small galaxy most likely to merge? Select the two correct answers.(1 point)

Question

Responses

a fast-moving galaxy
a fast-moving galaxy

an equal-sized galaxy
an equal-sized galaxy

a much larger galaxy
a much larger galaxy

a nearby galaxy
a nearby galaxy
Question 2
Which factor is essential to the initial formation of galaxies, for either of the theories describing galaxy evolution?(1 point)
Responses

The force of orbiting stars generates collisions.
The force of orbiting stars generates collisions.

Massive gas and dust clouds collapse.
Massive gas and dust clouds collapse.

Small lumps of material merge into larger clumps.
Small lumps of material merge into larger clumps.

Gravity acts on existing material, shaping it into a new form.
Gravity acts on existing material, shaping it into a new form.
Question 3
Which characteristics are considered most typical of an old galaxy in decline?(1 point)
Responses

low gas content, little star formation
low gas content, little star formation

shrinking in size, high dust content
shrinking in size, high dust content

very bright, relatively small
very bright, relatively small

spiral, abundant planets present

Answer 1

Here are the answers to your questions:

Question 1: With which type of galaxy is a small galaxy most likely to merge?
Correct Answers:

• a much larger galaxy
• a nearby galaxy

Question 2: Which factor is essential to the initial formation of galaxies, for either of the theories describing galaxy evolution?
Correct Answer:

• Massive gas and dust clouds collapse.

Question 3: Which characteristics are considered most typical of an old galaxy in decline?
Correct Answer:

• low gas content, little star formation

If you have any more questions or need further explanation, feel free to ask!