Why do volcanoes occur at the edges of plates?​

Most of the world's volcanoes are found around the edges of tectonic plates, both on land and in the oceans. On land, volcanoes form when one tectonic plate moves under another. Usually a thin, heavy oceanic plate subducts, or moves under, a thicker continental plate.

sorghum farming likely spread with the bantu migration. there is your answer i had to get it wrong to get this right so i hope ya'll enjoy!

20: 5

explanation:

about 20% of the world's population lives in   southwest asia, but on less than 5% of the world's   land area.