Question

how did the islands come into existence​

Answer 1

Answer:

As volcanoes erupt, they build up layers of lava that may eventually break the water's surface. When the tops of the volcanoes appear above the water, an island is formed. While the volcano is still beneath the ocean surface, it is called a seamount. Oceanic islands can form from different types of volcanoes.

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Explanation:

Answer 2

Explanation:

islands islands come into existence million years ago as islands are mainly of different types as like coral islands which are made by the organic waste material the organism release their waste material and by the accumulation of the waste material of a used colony of organism a coral island will form some islands are found by the volcanic eruptions and some Island formed through earthquake inside sea aur ocean