Landform Creation:Over time, repeated eruptions and the accumulation of volcanic materials can build up new landforms, such as:Islands: Volcanoes erupting in the ocean can create new islands, like the Hawaiian Islands, where shield volcanoes rise from the seafloor. Mountains: Volcanic eruptions can build up mountains, with different types of volcanoes like composite volcanoes (stratovolcanoes) and shield volcanoes forming different shapes and sizes. Plateaus: Large areas of volcanic rock can form plateaus, which are elevated, flat areas.