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Magma can be described as melted rock deep within the Earth, usually originating from the melting of the upper mantle or crust. The magma will generally contain silica tetrahedra as well as many metal cat...

This can be solved using Pythagoras. We know that the pole is 90 degrees to the floor so the height of the pole is the opposite side. The distance between Tim and the pole is therefore the adjacent and he...

First, I would outline the political causes of the Norman Conquest; that Edward the Confessor died with no direct male heir and so multiple claimants arose to contest the succession. These included the gr...

When tackling a question which asks you why a historical process or event occurred, the first thing to remember is that any answer you give must approach the question from a variety of different angles; n...

whenever you move a term across the equals sign, the sign changes. So first we are going to move all of the x terms onto the left side and all of the number terms onto the right side, remembering that if ...