Topps has created some of the hobbyâs most iconic football cards, including almost all of those that would be on the list of the most valuable and popular ever issued. From 1956-63 Topps enjoyed a virtual football card monopoly (with the exception of 1961).
1 Volcanic mountains-Mountains that are caused by volcanic activity are called volcanic mountains. 2  There are two main types of volcanic mountains: volcanoes and dome mountains. 3  Volcanoes are formed when magma erupts all the way to the surface of the Earth. 4  The magma will harden on the Earth's surface, forming a mountain.
Mountains are formed by movements of the huge tectonic plates that make up Earthâs crust. Fold mountains are formed when plates collide. Block mountains occur when a slab of land is forced upward. Volcanic mountains are built up from layers of cooled and hardened lava and ash.