SSC MTS EXAM

Detailed explanation-1: -Eruptions and lava flow from submarine volcanoes allow volcanic islands to grow and develop thriving ecosystems.

Detailed explanation-2: -A new one just formed from an underwater volcanic eruption. The Pacific nation of Tonga is made up of 170 islands, but it just welcomed its newest addition-thanks to an underwater volcano. Near the center of the nation’s island formation lies the Home Reef volcano in the South Pacific.

Detailed explanation-3: -Here, a volcanic eruption of superheated magma (some 2, 200 degrees Fahrenheit) from the West Mata Volcano produces a bright flash of hot magma that is blown up into the water before settling back to the seafloor. The explosion throws ash and rock into the water, and molten lava glows below.

Detailed explanation-4: -Volcanoes are created over approximately 10, 000-500, 000 years by thousands of eruptions–each lava flow covering the one before it. In the case of oceanic island volcanoes, lava erupts first from fissures, or cracks, on the deep ocean floor. The flows continue to build up and finally an island emerges from the sea.