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What name is given to the boundary that separates Earth's... | QuestionStock

Representative image for question: What name is given to the boundary that separates Earth's crust from the underlying mantle?

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Science

What name is given to the boundary that separates Earth's crust from the underlying mantle?

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What name is given to the boundary that separates Earth's crust from the underlying mantle?

Options:

Gutenberg discontinuity
Lehmann discontinuity
Mohorovičić discontinuity (Moho)
Conrad discontinuity

Correct answer: Mohorovičić discontinuity (Moho)

Explanation: The Mohorovičić discontinuity, or Moho, marks the crust–mantle boundary and was identified in 1909 by Andrija Mohorovičić using seismic wave arrival-time differences.

Created 2026-03-10T17:31:39.627Z. Updated 2026-03-10T17:31:39.627Z.