Multiple choice

Which of the following options is part of the lithosphere?

  1. Crust and lower mantle

  2. Core and crust

  3. Upper core and mantle

  4. Crust and top mantle
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The lithosphere is Earth's rigid outer layer consisting of the crust and the uppermost solid mantle (approximately 100 km thick). It is broken into tectonic plates. The asthenosphere below it is the ductile part of the mantle. Options A, B, and C are incorrect because they include the lower mantle, core, or combinations that don't constitute the lithosphere.

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