GK
SOLAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the visible path of a meteoroid as it enters Earth’s atmosphere
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a visible body of liquid or frozen crystal droplets suspended about a planetary surface.
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a massive system of stars, gas, dust, and dark matter bound together by gravity.
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the ending stage of the life cycle of all super massive stars in the universe.
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Detailed explanation-1: -A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems, all held together by gravity. We live on a planet called Earth that is part of our solar system.
Detailed explanation-2: -A galaxy is any of the systems of stars and interstellar matter that make up the universe. Many such assemblages are so enormous that they contain hundreds of billions of stars. Galaxies usually exist in clusters, some of which measure hundreds of millions of light-years across.
Detailed explanation-3: -Galaxies are vast cosmic islands of stars, gas, dust, and dark matter held together by gravity.
Detailed explanation-4: -A galaxy is a system of stars, stellar remnants, interstellar gas, dust, dark matter, bound together by gravity. The word is derived from the Greek galaxias (), literally ‘milky’, a reference to the Milky Way galaxy that contains the Solar System.