GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Many galaxies are found inside of a single nebula.
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Entire galaxies are created from the gas and dust of a single nebula.
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Many nebulae are found inside of a single galaxy.
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Nebulae and galaxies combine to form stars.
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Detailed explanation-1: -Astronomers originally thought that the Andromeda Galaxy was a nebula until the nature of a galaxy was confirmed. Which of the following shows the relationship between a galaxy and a nebula? Many galaxies are found inside a single nebula. Entire galaxies are created from the gas and dust of a single nebula.
Detailed explanation-2: -Compare this to a nebula, which also incorporates gas and dust held together by gravity.
Detailed explanation-3: -Stars are born within the clouds of dust and scattered throughout most galaxies. A familiar example of such as a dust cloud is the Orion Nebula. Turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction.