Question

how are the volcanic activites on the earth useful for natural resources​

Answer 1

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I guess the main good effect that volcanoes have on the environment is to provide nutrients to the surrounding soil. Volcanic ash often contains minerals that are beneficial to plants, and if it is very fine ash it is able to break down quickly and get mixed into the soil.

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Answer 2

volcanic emissions have produced the atmosphere and the water of the ocean. Pumice and volcanic Ash are used as abrasives, Mostly in hand soap and household cleaners. Also the black soil formed because of the lava is very fertile to grow crops. Also

volcanoes have helped cool the Earth by removing heat from its interior