Question

Igneous rocks are classified based upon their
A) composition B) texture C) Both A & B D) None of the above

Answer 1

Answer:

(c)

Explanation:

Igneous rocks may be simply classified according to their chemical/mineral composition as felsic, intermediate, mafic, and ultramafic, and by texture or grain size: intrusive rocks are course grained (all crystals are visible to the naked eye) while extrusive rocks may be fine-grained (microscopic crystals) or glass

Answer 2

Answer:

It van be classified based on composition