Describe the difference between a typical galaxy and a quasar.

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Quasars can only exist while sufficient material is falling into the accretion disc. Once the material runs out the active galaxy becomes a regular galaxy. The quasars which have been observed are billions of light years away. This means that they are young galaxies as seen in the early universe

Explanation:

Quasars live only in galaxies with supermassive black holes — black holes that contain billions of times the mass of the sun quasars have luminosities thousands of times greater than a galaxy such as the Milky Way. Usually, quasars are categorized as a subclass of the more general category of AGN. The redshifts of quasars are of cosmological origin.

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-August~

5.4%

explanation:

the acceptance rate for harvard is 5.4%. this means only 5 percent of people who apply actually get accepted!