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An alicyclic compound contains one or more all-carbon rings which may be either saturated or unsaturated, but do not have aromatic character. Alicyclic compounds may have one or more aliphatic side chains attached...hope this helps :)
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in a limited government the government is limited by law
in a unlimited government the law sets no limits on the actions of a government
tyranny can result in an abuse of power such as the abuse military power against its citizens.
When there is a normal democratic limited government the government can not use force like police or military against protesters or other sorts of opposition. In an unlimited government or a tyranny the government can enforce its will on its citizens and almost nothing can stop it except an uprising or something similar.
After its main sequence a medium sized star like our sun becomes a red giant, it grows a lot bigger that it's regular size that it will burn earth into ciders, after that it will eject its own nebula and fade away as a dwarf star.