Question

what fraction is igneous and metamorphic rocks

Answer 1

Igneous Rocks - rocks that cool from a magma. The two most common types are granite and basalt.Metamorphic Rocks - rocksthat have been altered by high pressures, temperatures and/or chemical reaction while still in the solid state.

Answer 2

Igneous rocks - rocks that cool from a magma.
Two types are granite and basalt.
Metamorphic rocks - the rocks that have been altered by high pressure /temperature or chemical reaction while in solid state.
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