Answer:
Coal it is formed when there is some heat and pressure conditions mixed together.
Explanation:
Depending the conditions are the stages of coal that are presented, the greater the pressure and heat, the higher rank appears (from peat, lignite, bituminous until anthracite).
During the Carboniferous period, in the Paleozoic Era, there were a collision among Laurasia (present day Europe, Asia and North America) with Gondwana (present day Africa), both part of the Pangea. As a result of the collision, Appalachian Mountain appears in North America and Hercynian Mountains in the UK. Giving a separation of both continents.
During this period, the mild temperatures, increases the tree ferns, plus the increases of the tetrapods, produce coal areas in both countries.
Hope this info is useful.
Answer:
6 continentes (modelo geológico): guarda una relación aproximada con las placas tectónicas continentales, por lo que Europa y Asia forman un solo continente denominado Eurasia y en cambio América está dividida en dos continentes (América del Norte y América del Sur).
Explanation:
The correct answer is C.
C. The sea floor is constantly expanding as new magma comes up through the surface.