Mantle convection may occur in two layers within the mantle

Name: Mantle convection may occur in two layers within the mantle - the active upper mantle and the sluggish lower mantle - as proposed in the layer cake model.
Brand: Quizplus
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Question

Mantle convection may occur in two layers within the mantle - the active upper mantle and
the sluggish lower mantle - as proposed in the layer cake model.

Quizplus · Accepted Answer

The statement is true. The layer cake model proposes that mantle convection occurs in two layers within the mantle, with the active upper mantle and sluggish lower mantle.