Question

1. How did the islands come into existence?​

Answer 1

Answer:

Oceanic islands (4), also known as volcanic islands, are formed by eruptions of volcanoes on the ocean floor. ... 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

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Answer 2

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.