Thermal because you have to melt rocks for rocks to become other types of rocks.
Selection bias
is a kind of error that occurs when the researcher decides who is going to be studied.
<span>The correct answer is C. Tournament pay :)</span>
Piaget would say that this is an example of "<span>Substage 3: Secondary circular reactions".
Substage 3 refers to the 4 - 8 months of age, is Secondary Circular Reactions. In this stage attempts to rehash risk pleasurable activities, in nature; e.g. hitting a portable; getting a glass are included.Looks for objects that have dropped from view or an incompletely covered up.</span>