which properties are more useful in determining the Identity of an unknown substance:intensive or extensive explain

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide