What's underneath countries?

live on tectonic plates , move around. caused convection currents in mantle move around , @ plate boundaries cause earthquakes , volcanoes. volcanoes caused magma rising mantle , when gets top , comes out through crust, gets called lava , spreads out forming land. if keeps repeting itself, more land formes , eventualy erupt.

there 2 types of crust: oceanic , continental. oceanic crust denser continental crust. underneath there mantle made of magma (liquid rock hot).

that's know. more 'detailed' way of describing how ties each other. hope have helped! ;-)

hard phrase what's underneath countries, land etc? land extend bottom of ocean or float?

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