Sci-Five | The Hindu Science Quiz: On submarine volcanoes
This view taken on January 17, 2015 from a boat at sea shows a frigate bird (C) flying on the thermals from the new vent as steam and gas rise from the eruption of a volcano, some 65 kilometres (40 miles) northwest of the South Pacific nation Tonga’s capital Nuku’alofa.
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1 / 5 |
Where do most volcanic eruptions occur on Earth?
- Canyons
- Under the ocean
- Islands
- Mountains
About 80% of the volcanic eruptions on Earth take place underwater. They form new landmasses and provide a living environment for deep-sea creatures
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2 / 5 |
Where are submarine volcanoes most commonly found?
- Continental shelf
- Oceanic trench
- Fjord
- Boundaries of tectonic plates
Like continental ones, volcanoes under the ocean are most commonly found around the boundaries of tectonic plates.
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3 / 5 |
Where are most of the active volcanoes located?
- Mid-Atlantic ridge
- Alpine-Himalayan orogenic belt
- Ring of Fire
- Andean volcanic belt
The most active volcanoes are located in the ‘Ring of Fire’ located under the Pacific Ocean. It consists of more than 450 volcanoes.
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4 / 5 |
When was the most recent underwater volcano eruption?
- January 2022
- July 2022
- March 2021
- January 2021
The Hunga Tonga–Hunga Ha’apai volcano in the South Pacific Ocean erupted on January 15, 2022.
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5 / 5 |
Which country is also a volcanic island?
- Madagascar
- Iceland
- Greenland
- Haiti
Estimated to have formed about 16 to 18 million years ago, Iceland’s land surface was formed by the cooling of volcanic eruptions that occurred under the ocean.
Next Published - May 11, 2023 11:51 am IST
