Answer :

Translation= Why do volcanoes and earth are more frequent in certain regions of the planet?

They get more frequent the hotter it gets. Plus you have to count in the ring of fire which is a circle of volcanoes and not actually fire. In places that circle the pacific ocean.
gerrymontes
Portuguese-Por que os vulcões e os terremotos são mais freqüentes em certas regiões do planetaSpanish-Por que los volcanes y los terremotos son mas frequentes en ciertas regiones del planeta
English-Why do volcanoes and earthquakes are more frequent in certain parts of the world?
1-it may be because of there geographic location
2-because of the Earth's mantle