Despite its dangers, volcanic activity has benefited japan by creating
a. hot springs
b. longer growing seasons
c. fertile soil
d. geothermal energy

The best and most correct answer among the choices provided by the question is the fourth choice. Geothermal energy benefited Japan by transforming heat energy to electrical energy to be consumed by homes and industries. I hope my answer has come to your help. God bless and have a nice day ahead!

Iam pretty sure it is c. 2000 bce

Magma forms by partial melting of upper mantle and crust. partial melt means that only a fraction of the available material forms a melt, and that the remainder stays solid. the partial melt rises because of its lower density and ascends through he crust. this is so conclusive mean the answer would be magma igneous rocks or balistic magma.