Geography · Interior of the Earth
Consider the following statements regarding the Earth's crust and choose the correct option: 1. The Earth's crust is the outermost layer and varies in average thickness between roughly 5 km under oceanic floors and about 35 km under continental landmasses. 2. The continental crustal mass is mainly made of silica and alumina ('sial'), while the oceanic crust consists primarily of silica and magnesium ('sima').
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Neither statement 1 nor statement 2 is correct.
- 2Both statements 1 and 2 are correct.✓
- 3Only statement 2 is correct.
- 4Only statement 1 is correct.
Correct answer
Both statements 1 and 2 are correct.
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