What are some similarities and differences between a volcano and a folded mountain?

Folded Mountains - The term fold is used in geology when one or a stack of originally flat and planar surfaces, such as sedimentary strata, are bent or curved as a result of plastic (that is, permanent) deformation. 
Volcanic Mountains - are mountains that form when molten rock erupts onto the Earth's surface. They can either form on land or in the ocean 

A. they hold atoms  together with a molecule.its a force that exist between molecules. hope this .