Answer: Sixty percent of all active volcanoes occur at the boundaries between tectonic plates most volcanoes are found along a belt, called the “Ring of Fire” that encircles the Pacific Ocean some volcanoes like those that form the Hawaiian Islands, occur in the interior of plates at areas called “hot spots
I believe it is the first answer
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Switzerland, Austria and France,Germany
Oxidation - the breakdown of rock by oxygen and water, often giving iron-rich rocks a rusty-coloured weathered surface.
Atmosphere.................
