Multiple choice

The crust, mantle and core are layers of our Earth differentiated by which property?

  1. physical properties

  2. composition

  3. arbitrarily defined

  4. planetary nebula
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The division of the Earth into the crust, mantle, and core is based on chemical composition (the types of rocks and metals that make up each layer). In contrast, divisions like the lithosphere and asthenosphere are based on physical properties like rigidity and plasticity.

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