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Q: _____ is not one of the basic types of galaxies.
  • A. Regulars
  • B. Ellipticals
  • C. Spirals
  • D. Irregulars
Correct Answer: Option A - Regulars is not one of the basic type of galaxies. There are three basic forms of a galaxies: (a) Spiral:- Spiral galaxies are flattened disc-shaped which contain spiral arms of interstellar matter. (b) Irregular:- Irregular galaxies are those which do not have a common axis i.e. they do not spin regularly. (c) Elliptical:- Elliptical galaxies have a symmetrical elliptical shape with no clearly defined internal structures. Most of the stars in them are comparatively old red stars and no new stars are forming in them. There are approximately 100 billions galaxy in the universe and each galaxy consists of billions stars.
A. Regulars is not one of the basic type of galaxies. There are three basic forms of a galaxies: (a) Spiral:- Spiral galaxies are flattened disc-shaped which contain spiral arms of interstellar matter. (b) Irregular:- Irregular galaxies are those which do not have a common axis i.e. they do not spin regularly. (c) Elliptical:- Elliptical galaxies have a symmetrical elliptical shape with no clearly defined internal structures. Most of the stars in them are comparatively old red stars and no new stars are forming in them. There are approximately 100 billions galaxy in the universe and each galaxy consists of billions stars.

Explanations:

Regulars is not one of the basic type of galaxies. There are three basic forms of a galaxies: (a) Spiral:- Spiral galaxies are flattened disc-shaped which contain spiral arms of interstellar matter. (b) Irregular:- Irregular galaxies are those which do not have a common axis i.e. they do not spin regularly. (c) Elliptical:- Elliptical galaxies have a symmetrical elliptical shape with no clearly defined internal structures. Most of the stars in them are comparatively old red stars and no new stars are forming in them. There are approximately 100 billions galaxy in the universe and each galaxy consists of billions stars.