Question

continents, plates, and volcanoes on earth
source: united states geological survey
volcanoes are scattered randomly across earth.
volcanoes are only located along edges of continents.
volcanoes are mostly located along boundaries between plates

Explanation:

By observing the map, we can see that the yellow - colored active volcanoes are concentrated along the black - colored plate boundary lines. This indicates that volcanoes are mostly located along boundaries between plates. The first statement is incorrect as volcanoes are not scattered randomly. The second statement is also incorrect as volcanoes are not only located along the edges of continents.

Answer:

Volcanoes are mostly located along boundaries between plates.