Question

Clastic, chemical, and organic are the three main types of

a. igneous rocks.
b. plutonic rocks.
c. sedimentary rocks.
d. metamorphic rocks. user: which rock is formed from organisms?
a. granite
b. coal
c. quartz
d. olivine

Answer 1

clastic, chemical, and organic are the three main types of (c. sedimentary rocks)
which rock is formed from organisms? (b. coal)