Question

Discuss volcano and tsunami in a few words.

Answer 1

Volcano is an opening in the earth's crust through with lava, volcanic ash and gases escape. This escaping of gases and other substances from the volcano is called volcanic eruption.

When volcanic eruption or earthquake happens underwater on the seafloor or ocean floor, it produces tidal waves which we call tsunami. The velocity of these waves is 800-900 km/hr. And the height is upto 30 metres.