QuestionMarch 21, 2026

Which layer of the Earth is the thinnest? Crust Outer core Mantle Inner core

Which layer of the Earth is the thinnest? Crust Outer core Mantle Inner core
Which layer of the Earth is the thinnest? Crust Outer core Mantle Inner core

Solution
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Answer

Crust Explanation 1. Identify Earth’s layers and their thickness Crust: ~5–70 km, Mantle: ~2,900 km, Outer core: ~2,200 km, Inner core: ~1,200 km. 2. Compare thicknesses The crust is far thinner than other layers.

Explanation

1. Identify Earth’s layers and their thickness <br /> Crust: ~5–70 km, Mantle: ~2,900 km, Outer core: ~2,200 km, Inner core: ~1,200 km. <br />2. Compare thicknesses <br /> The crust is far thinner than other layers.
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