Multiple Choice
Why do we find a larger percentage of spiral galaxies in distant clusters compared to nearby clusters?
A) Distant clusters are younger,and this contrast in the percentage of spirals shows evidence for the natural evolution of spirals into ellipticals.
B) Distant clusters are older,and this contrast in the percentage of spirals shows evidence for the natural evolution of ellipticals into spirals.
C) Over time,galactic collisions and mergers have destroyed many of the spiral arms that give spirals their distinctive appearance.
D) Spirals contain more gas and dust than ellipticals.In older,nearby clusters,less gas and dust remain and fewer spirals are created.
Correct Answer:
Verified
Correct Answer:
Verified
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