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Why do rocks have to be solid to be rocks?
It is a question of definition. Rocks are defined to be composed of minerals (at least two minerals). Minerals are by definition solid because liquid materials cannot sustain a regular repeated and symmetrical crystal lattice. Therefore rocks have to be solid.
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magma can be generated from solid rock by three things: 1. decress in PRESSURE 2. increase in TEMPATURE 3. addition of VOLATILES
the order sedimnets become solid rocks when water and air squeezed out from between the sedimnet layer. The sedimnets may also become solid rock when dissolved minerals in the… water cement the sedimnts together
Rock is solid.
The Lithosphere is solid rock floating on molten rock.
No. Molten rock expands due to heat as the molecules get excited, therefore it is less dense than solid rock.
A rock is a solid in the states of matter because it never changes its volume or mass. Also its molecules tightly packed together.
After millions of years of the rock degrating, it becomes an almost sand like substance. Rocks are broken down by the natural elements until it is in such small pieces that i…t is like sand. Add decomposed organic matter and you have soil.
It cannot flow because its not hot
It cools and becomes solid
Mercury, Venus, Earth and Mars.
Sedimentary rocks are thusly formed.
Solidification (but that's too obvious, isn't it?). You could even argue that Cooling would also be a correct description of the process. Lithification seems like it would be …good, too, but that actually refers to the process of, say, sand being compressed and heated until it becomes sandstone.