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1. What is epicyclic model?
The Epicyclic model is equivalent to the so that they can maintain the circumferences while supposing that the . Basically, it used to measure the .
2. Name the four different types of galaxies.
Answer variants:
Barred Spiral Galaxy
Elliptical Galaxy
Irregular Galaxy
Spiral Galaxy
a.Smallest Galaxy -
b. New stars -
c.Every particle and object centred at a particular place -
d.No particular shape -
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