The answer is C where the star is found in the sky. If a star is moving toward us, its spectroscopy will be observed at shorter wavelengths, this is called "blueshifted". If the star is moving away from us, the lines will appear in longer wavelengths, and that's called "redshifted".
Sorry for a late response, but I hope this helped.
Yes, they are formed by cooling of molten magma formed at the earth's crust. <span />
False- people do use chronology in day to day life
Answer:
hydroshpere and biosphere
Explanation:
it contains
hydrosphere: cleaning of water
biosphere: helps plants and animals