B.) crystallization. Igneous rocks turn into sediments through the process of crystallization.
A population that has been isolated, especially a smaller one, could have a high level of homozygosity and therefore not a lot of genetic variation. Gene flow between such populations can increase the level of heterozygosity, and therefore up genetic variation.
Examples of physical changes in properties are melting, transition to a gas, crystallization, etc
Wave height that should be it;)
<span>your answer is cranial cavity </span>