Obsidian is a glassy black igneous rock. A sample of obsidian is shown. Which type of rock forms in a similar manner as obsidian but ata

Question

slower rate? a
schist, which forms under extra,e heat and pressure
b
conglomerate, which forms when different sized sediments cement
c
gypsum, which forms when water evaporates and leaves behind minerals
d
granite, which forms as magma cells deep underground

Answer 1

d. granite, which forms as magma cools deep underground.