Answer:
Volcanoes have played an important role in the formation of the Earth's surface features by providing it with hilly and mountainous terrains, surface undulations and depressions.
Explanation:
- The eruptions and cooling of volcanoes provided the Earth with required undulations that are necessary for the formation of natural valleys and hills.
- The volcanic dust also helped the surface soil become more fertile and favorable for the growth of more and more plant species.
- Moreover, volcanoes also helped by bringing to the top the minerals existent in the lower inaccessible layers of the Earth's crust.
