Question

As you saw in the video, the geological activity that forms volcanoes also produces valuable materials, such as gold, sulfur, and diamonds. However, not all volcanoes occur on land. The volcanic activity along oceanic plate boundaries can also deposit valuable metals and minerals along the ocean floor. In your own words, briefly compare and contrast the possible environmental impacts of mining underwater volcanoes versus land-based volcanoes.

Answer 1

https://k12.libretexts.org/Bookshelves/Science_and_Technology/Earth_Science/07%3A_Geological_Activity_and_Volcanoes/7.02%3A_Volcanoes_at_Plate_Boundaries

The most significant difference between undersea and land volcanoes has frivolity to do with water's dampness, but with its force. At these depths, the water pressure can be two hundred and fifty times more effective than air pressure at the Earth's surface.

How do underwater volcanoes affect the environment?

Greenhouse Gas Liberation

Submarine volcanoes release a greater portion of carbon dioxide into the air which is calculated at around 180 to 440 million tons. The Sulfur Dioxide emission drives volcanic smog and plays a more significant role in ozone deficit.

Thus, this could be the answer.

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