Question

What do most igneous, sedimentary and
metamorphic rocks have in common?
(1) They are formed from molten material.
(2) They are produced by heat and pressure.
(3) They are composed mostly of minerals.
(4) They are found mostly in distinct layers.

Answer 1

I think it’s 4.

1 is not correct because it only applies to igneous rocks.

2 is not correct because it only applies to metamorphic.

3 is wrong because not all rocks are composed of minerals.

This means that 4 is the only possible answer.