In Indonesia there are many volcanoes, the shape of the mountain region between the regions one by one with the other regions are not the same, but most of the volcano in Indonesia have the same form. With the existence of volcanoes in Indonesia can provide the benefits of which are as follows:
- Volcanic ash on the volcano can remove the fertile agricultural land.
- Sand, gravel and stone in the remove at the time of eruption can be used for building materials.
- Many in the mining materials issued by the volcano, for example, metallic mineral
- High volcano orografis cause rain.
- Volcanic areas is usually in manfatkan for forest areas and tourism areas
- Many springs that were found on a mountainside.
