<span>The subduction of oceanic crust under continental crust predominantly produces violent and explosive types of volcanic eruption.
This is because this type of lava is created at low temperatures, but would cause a violent and explosive eruption at some point in time.</span>
Your answer to this question Plateau
Using the principles of cross-cutting relationships, you can determine the relative age of rocks found in the ground. The idea behind it is that the geologic feature which cuts another is the younger of the two features, and it had been around for 400 years. It's not very precise but it is good for determining relative age.
The Apennines cover all of peninsular Italy