Metamorphic rocks are produced when rocks are recrystallized by heat and pressure.
Although they began as a different kind of rock, metamorphic rocks have undergone significant alteration from their igneous, sedimentary, or previous metamorphic forms. When rocks are exposed to extreme temperatures, high pressures, hot mineral-rich fluids, or, more frequently, some combination of these conditions, metamorphic rocks are created.
High pressures and temperatures both have a role in recrystallization. Solid crystals can reorganize themselves by migrating as a result of high temperatures. The crystals within the rock at their places of contact dissolve under high pressure.
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Answer:
Its important to understand the difference between true north and magnetic north because true north is a fixed point on the globe. Magnetic north is the direction that a compass needle points to as it aligns with the Earth's magnetic field. It is also important so you know where your going.
Answer: A Muslim prays as if standing in the presence of Allah. In the ritual prayers each individual Muslim is in direct contact with Allah. There is no need of a priest as an intermediary. (While there is a prayer leader in the mosque - the imam - they are not a priest, simply a person who knows a great deal about Islam.)
Explanation:
True. The continents are always moving and shifting.
The correct answer is Australia;
Australia is somewhat famous for thriving in opal mining.
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~Vinny:)
