Question

Earth’s surface is constantly changed by erosion and deposition. Erosion breaks down Earth’s surface by carrying materials away from an area. Deposition builds up Earth’s surface when these materials are deposited in an area over time.

Which landform results when erosion occurs during volcanic eruptions, but deposition does not directly contribute to creating the landform?

volcanic soil
cinder cone
caldera
lava plateau

Answer 1

Caldera

A caldera forms when a large eruption removes magma from the chamber and the ground above collapses into the emptied space. It’s created by removal/collapse during an eruption, not by deposition of erupted material (unlike cinder cones or lava plateaus).