Precious stones like sapphire, ruby, emerald and diamonds are found in ________ rocks.
A. sedimentary rocks
B. metamorphic rocks
C. igneous rocks
D. aqueous rocks.
Answer:B
Precious stones like sapphire, ruby, emerald and diamonds are found in ________ rocks.
A. sedimentary rocks B. metamorphic rocks C. igneous rocks D. aqueous rocks.