The object among the planetary nebula and the supernova remnants as shown below. The body in which the gases would expand more rapidly, away from the central star. Both bodies comprise of glowing gases and are about the same age. (Provide the reason for the answer)

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Chapter 20, Problem 74Q

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The object among the planetary nebula and the supernova remnants as shown below. The body in which the gases would expand more rapidly, away from the central star. Both bodies comprise of glowing gases and are about the same age. (Provide the reason for the answer)

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