The answer is that it occurs when minerals absorb into water
and expand. Hydration is a term used to show that a substance contains water.
Hydration enthalpy, energy unconstrained from water reactions. Also it is known
compound produced by combining a substance chemically with water. Many minerals
and crystalline substances are hydrates.
The two tectonic plates meet at point one. One is moving under the other, shown by the two arrows on the top pointing towards each other. The denser plate (left side) is subducted. This means the denser plate begins to go under the less dense plate. The lithosphere (crust/tectonic plate) is mainly solid rock. As it begins to go into the mantle it will begin to heat up as the mantle is hotter than the surface. The solid surface becomes a molten rock, known as magma. It melts as it goes down.
Scientists<span> can tell by observing the seismic waves that are recorded all over the surface of the </span>earth<span> from distant earthquakes. The seismic waves are reflected (bounced off) </span>layers<span> of different density, and they are refracted (bent) when they enter </span>layers<span> of different density.</span>
The impact of ancient Rome on western civilization cannot be hibernated. Though it has been thousands of years since the reign of the Roman Empire, but the traces are still evident in today's world. Some of the notable impacts can be found in today's architecture, arts, laws, engineering, constructions, languages etc. It is said that the Latin language, which was spoken by the Romans, went as far as Western Europe and many languages emerged from Latin. These languages are called the "Romance languages." They include Spanish, French, Italian, Romanian and Portuguese. As a result of this, over 800 million people around the world speak a Romance language. Rome is also associated with the Catholic church, it is believed that the Romans helped spread Christianity in Europe, and today it is the largest religion in the world.
The two factors, Temperature and Pressure, have the greatest influence on the state of each of Earth's layers.
Hope I helped!