How do volcanoes help farming in a good way?

Fertile soil is another advantage of volcanic activity. “In places like Japan, Indonesia, Philippines, and Hawaii, volcanic material mixed in with the soil provides a lot of important nutrients,” Krippner said. “It gives us really fertile soils, which are great for farming and crops.”

Explanation:

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Volcanic materials ultimately break down and weather to form some of the most fertile soils on Earth, cultivation of which has produced abundant food and fostered civilizations.

The internal heat associated with young volcanic systems has been harnessed to produce geothermal energy.