While there are many different ways of answering the question of who is a mentor, a basic definition with which we can begin is that a mentor is a special kind of helper who works with others in a positive, constructive way so that both mentor and protÃ©gÃ© have the potential to grow through the relationship.
More information. A metamorphic rock is a result of a transformation of a pre-existing rock. The original rock is subjected to very high heat and pressure, which cause obvious physical and/or chemical changes.Examples of these rock types include marble, slate, gneiss, schist.ore information. A metamorphic rock is a result of a transformation of a pre-existing rock. The original rock is subjected to very high heat and pressure, which cause obvious physical and/or chemical changes.
A metamorphic rock is an igneous, sedimentary, or ano â¦ ther metamorphic rock that has either been squeezed by incredible pressures deep underground and/or has been exposed to very high temperatures, altering its structure, mineral alignment, mineralogy, and possibly its chemistry. 3 people found this useful.ituminous coal is a sedimentary rock. Anthracite coal is considered a metamorphic rock. 5 people found this useful. Edit. Share to: 1  The Periodic Table of Elements Life is sustained by a number of chemical elements.