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Molten magma reaches the surface as lava and then solidifies. What kind of rock forms?
ASedimentary rock
BMetamorphic rock
CCrystalline rock
DIgneous rock
Answer & Solution
Correct answer: D. Igneous rock
1. Rocks are grouped as igneous, sedimentary or metamorphic according to how they formed.
2. Igneous rocks form when magma is brought to the surface as lava and then solidifies.
3. Granite and basalt are given as examples of igneous rock.
4. Sedimentary rock instead forms when fragments and particles are deposited and compacted over time.
_Source: Siyavula Physical Sciences Grade 11 (Everything Science, CC BY 4.0), Chapter 14: The lithosphere_