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Subjects
Class 11GeographyThe Origin and Evolution of the EarthEarly and modern theoriesMedium
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The concept of a protoplanetary disk helps explain what?

Answer and explanation

Correct answer: Planets orbiting nearly in the same plane

Planets formed from a flat disk move nearly in the same plane. In exams, remember disk and orbital plane together.

Related tags

OriginEvolutionProtoplanetary DiskOrbitsEarly And Modern TheoriesThe Origin And Evolution Of The EarthGeographyClass 11 Mcq
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10 more MCQs
  1. 1Which is a well-known early hypothesis about the origin of the Earth and the solar system?
  2. 2What does the Nebular Hypothesis primarily explain?
  3. 3Who first proposed an early form of the Nebular Hypothesis?
  4. 4Which scientist later modified the Nebular Hypothesis?
  5. 5In the classical Nebular Hypothesis, what was the source from which the solar system formed?
  6. 6What does the Planetesimal Hypothesis seek to explain?
  7. 7Which scientists are associated with the Planetesimal Hypothesis?
  8. 8According to the Tidal Hypothesis, what event helped produce the material from which planets formed?
  9. 9Which scientists are associated with the Tidal Hypothesis of solar-system formation?
  10. 10Which is the most widely accepted modern model for the early evolution of the universe?
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