Answer: b/c it increased the production of books
Explanation:
-less tedious work
-saves time and money
Por la colisión de dos placas continentales entre sí
<span>metamorphic rocks are exposed at the Earth's surface following erosion and uplift from the temperatures and pressures that occur at great depths within the Earth's crust.</span>
.lava
. magma
The other ones don't deal with igneous rocks but metamorphic rock.Crystals could go with it but I don't believe it does because it is crystallization not just crystals.