science
Grade-4-
Easy
Question
Scoria is a________.
- Metamorphic rock
- Intrusive igneous rock
- Sedimentary rock
- Extrusive igneous rock
Hint:
The scoria is an extrusive rock that is formed from magma on the surface of the earth.
The correct answer is: Extrusive igneous rock
- Igneous rocks are of two types that are intrusive and extrusive.
- Intrusive rocks are formed from magma under the surface and extrusive rocks are formed from magma at the surface of the earth.
- The scoria is formed from the magma at the surface. So it is an extrusive igneous rock.
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