Volcanoes are commonly found: A. near canyons. B. where land masses on two different plates come together. C. above hot spots. D. on land, but never beneath the ocean surface. E. in the Southern Hemisphere and only rarely in the Northern Hemisphere.

Volcanoes are commonly found "ABOVE HOT SPOTS". which means option "C" is most correct.

Explanation: volcanoes are mountains or hill, which are conical in shape, and having a crater or vent through hot vapor, which lava, rock fragments, and gas have been erupted from the earth's crust.

Volcanoes are found at the hot spot of the earth crust. Where they is a ring of fire, which looks like the one that rounds the Pacific ocean. The hot spot are the part of the earth crust that is very hot, because

it the location of most of the Earth's subduction zones. A subduction zone is a place where one plate of oceanic lithosphere is shoved under another plate.

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.

answer; ///biological psychologists;