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When does a star enter the main sequence stage?

Answer and explanation

Correct answer: When hydrogen fusion becomes stable in its core

Stable hydrogen fusion places a star on the main sequence. Exam tip: remember the difference between protostar and main sequence.

Related tags

Main SequenceHydrogen FusionStar FormationFormation Of PlanetsAnd Our Solar SystemStar Formation Formation Of Planets And Our Solar SystemThe Origin And Evolution Of The EarthGeographyClass 11 Mcq

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