Question

why are there many active volcanoes on Islands​

Answer 1

Answer:

Each of the islands in the Hawaiian island chain formed throughout history from a hot spot of magma located below the Earth's surface. The magma bubbles up and builds upon itself until it is tall enough to break the surface of the ocean and form an island.

Answer 2

The abundance of volcanoes and earthquakes along the Ring of Fire is caused by the amount of movement of tectonic plates in the area. Along much of the Ring of Fire, plates overlap at convergent boundaries called subduction zones.

Each of the islands in the Hawaiian island chain formed throughout history from a hot spot of magma located below the Earth's surface. The magma bubbles up and builds upon itself until it is tall enough to break the surface of the ocean and form an island.