i am only ten but my reserch says that a volcano is a lythosphere or a pimple the outer layer of a pimple is the lythosphere the inside wouls be the melted rock [lava]so heres my thinking of it if you think im wrong then put down your example of it right here on ask.com
Well, the biosphere is all the plants and animals in the Earth, so it is located wherever plants and animals are found.