CHILD DEVELOPMENT PEDAGOGY

Detailed explanation-1: -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.

Detailed explanation-2: -If a volcano does not reach the surface of the ocean, it is called a seamount. If a volcano grows in height and volume enough to reach the ocean’s surface, it becomes a volcanic island (like the islands of Hawaii).

Detailed explanation-3: -When a seamount rises above the surface due to volcanic activity, it is called a volcanic island. Waves, wind, and rainfall erode islands over time, and they may eventually sink below the surface again, sometimes forming atolls (ring-shaped coral reefs surrounding a lagoon) or guyots (flat-topped seamounts).

Detailed explanation-4: -The massive mid-ocean ridge system is a continuous range of underwater volcanoes that wraps around the globe like seams on a baseball, stretching nearly 65, 000 kilometers (40, 390 miles). The majority of the system is underwater, with an average water depth to the top of the ridge of 2, 500 meters (8, 200 feet).

Detailed explanation-5: -Most archipelagos are formed when volcanoes erupt from the ocean floor; these are called oceanic islands. The islands of the Hawaiian archipelago, for example, were formed by a series of volcanic eruptions that began more than 80 million years ago and are still active today.