Answer:
21. Intrusive igneous rocks solidify beneath the surface.
22. Slow cooling allows time for large crystals to form.
23. Sediments are laid down, or Compacted, before they can be formed into sedimentary rocks.
24. Fluids that crystallize in the spaces between the loose particles of sediments create rock by Cementation.
25. Regional metamorphism changes enormous quantities of rock over a wide area.
26. Contact metamorphism changes a rock that is in contact with magma because of the extreme heat.
27. In a metamorphic, minerals separate by Bedding into lighter and darker bands.
28. The rocks that form from an erupting volcano are Extrusive Igneous rocks.
29. Cemented sediments become Clastic sedimentary rocks.
30. Lithification occurs when sediments are squeezed together by the weight of overlying sediments on top of them.