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.
Mid-ocean ridges such as the Mid-Atlantic Ridge are places in the Earth's system of tectonic plates where new crust forms and the plates move away from one another. Powered by magma rising and falling in the mantle, these undersea mountain ranges are formed by numerous eruptions of basalt lava along their length.