Science unit 3 Describe the life cycle of stars, environmental science homework help

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Describe the life cycle of stars. In your own words, briefly describe the life cycle of stars. Include information related to how scientists can determine how far away a star is. provide reference

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The life cycle of stars and how scientists determine how far a star is.
Described below is the life cycle of a star which starts from the nebula formation till its death as
a neutron star or a dwarf.
The first step of the formation of the stars is the nebula which is composed of a cloud of
gases (hydrogen) and dust. Nebulas exist in different varieties. The emission nebula such as an
Orion is very bright because the gases in it receive energy from other stars previously formed in
it .In a reflection nebula , light from other stars reflect on the dust inside the forming nebula; an
example is a nebula around the Pleiades Cluster. There also exists a dark nebula ,which i...

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