How is a island formed

Volcanoes create up layers of lava when they erupt, which may ultimately break the water's surface. An island is formed when the tops of volcanoes rise above the ocean. A seamount is a volcano that is still submerged beneath the ocean's surface. Volcanoes of many sorts can generate oceanic islands.

Explanation:

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within these regions are all the major types of biomes in the world. a biome is a community of animals and plants spreading over an extensive area with a relatively uniform climate. some diverse biomes represented in north america include desert, grassland, tundra, and coral reefs.