question_answer

Categorize the following as metamorphic rocks, igneous rocks, and sedimentary rocks: marble, granite, sandstone, slate, pumice, conglomerate, quartzite, obsidian, shale.

A) Metamorphic rocks: granite, slate, quartzite. Igneous rocks:  marble, pumice, sandstone. Sedimentary    rocks:    obsidian, conglomerate shale.

B) Metamorphic rocks: marble, slate, quartzite. Igneous rocks: granite, pumice, obsidian. Sedimentary    rocks:    sandstone, conglomerate, shale.

C) Metamorphic rocks: marble, obsidian, quartzite. Igneous rocks: shale, pumice, slate. Sedimentary    rocks:    sandstone, conglomerate, granite.

D) All of these

E) None of these