Question

In which of the following islands of India in an active volcano found?
a) Car nicobar island
b) Nancowry island
c) Barren island
d) Maya bunder island

Answer 1

Hint: In the earth's crust, a volcano is an opening from which lava, volcanic ash, and gases escape. Volcanic eruptions are driven in part by dissolved gas pressure, such as escaping gases that push the cork out of a champagne bottle. Volcanoes are created as magma makes its way to the surface from inside the upper mantle of the Earth. It erupts on the surface to create lava flows and layers of ash. It will get bigger and bigger over time as the volcano begins to erupt.

Complete Answer:
- The only confirmed active volcano in India is Barren Island, one of the easternmost islands of the Andaman Islands. The Andaman & Nicobar Islands are the island along with the rest of the Andaman, and are located some 135 kms northeast of the capital of the territory, Port Blair. In India, only 7 Extinct and Active Volcanoes.
- The only active volcano in India is situated on Andaman Barren Island, which is also the only confirmed active volcano in South Asia.
- The volcano's first recorded eruption dates back to 1787. The volcano has erupted more than ten times since then with 2017 being the most recent one. Further eruptions were reported in 1789, 1795, 1803–04, and 1852 after the first recorded eruption in 1787.
- The island had another eruption in 1991 that lasted six months and caused significant damage after almost one and a half centuries of dormancy.

Hence, the correct answer is option c).

Note: Hawaii's Mauna Loa is the largest active volcano on our planet, rising steadily to more than 4 km (2.5 mi) above sea level. Its submarine flanks descend an additional 5 km (3 mi) to the sea floor, and the sea floor in turn is depressed by another 8 km of Mauna Loa's great mass (5 mi).