GENERAL KNOWLEDGE

GK

THE UNIVERSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How do new classify galaxies?
A
shapes
B
age
C
size
D
amount of gas
Explanation: 

Detailed explanation-1: -Galaxies are classified by shape. There are three general types: elliptical, spiral, and irregular. Perhaps the most familiar kind of galaxy are spiral galaxies. They have a distinctive shape with spiral arms in a relatively flat disk and a central “bulge".

Detailed explanation-2: -Yet over the past several billion years, many galaxies in clusters have changed from spiral to a smooth, or “lenticular, ‘’ disk shape. Theory suggests that galaxies can change from spiral to lenticular when two of them collide in slow motion interactions.

There is 1 question to complete.