nothing really. some positive affects are that the town that maybe was near it would become a top tourist attraction and the volcano itself would become famous. also it makes very good soil for...
the ash begins the flow up in the air,the sun gets rays and it decreases the temperatures
The negative effect is land is destroyed and lives are lost, but the positive effect is that after a period of time the land grows back and is lush.
the eriched soil rigorates from the reganic fromcord
i don't know go on google and find out
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