Geography · Igneous rocks
How were the primary or original rocks of the Earth's crust formed?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1By deposition of mineral particles from water bodies
- 2By intense heat and pressure altering existing rock structures
- 3By the accumulation and compaction of organic remains
- 4By the cooling and solidification of molten magma or lava✓
Correct answer
By the cooling and solidification of molten magma or lava
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