Question

If lava cools so quickly that crystals cannot form, the texture of the rock will be _____.

a. glassy
b. aphanitic
c. phaneritic
d. porphyritic

Answer 1

Hi There! :)

If lava cools so quickly that crystals cannot form, the texture of the rock will be _____.a. glassy
b. aphanitic
c. phaneritic
d. porphyritic

B. aphanitic

Answer 2

i think its a because that is how obsidian is made and it is glassy