Commitment Bonus â This has to do with the total amount of classes taught in the month long pay period. If you teach less than 30 classes a month there is no bonus. If you teach 30-45 classes in a pay period, you receive a $.50 per class bonus.
There are four primary types of fossils: mold fossils, cast fossils, trace fossils and true form fossils. Cast fossils are formed when the imprints created by fossils, called mold fossils, are filled in by minerals over time. Definition of Cast Fossils. A cast fossil is a type of fossil indicator.
A cast is when that mold has been filled in with rock or minerals. Carbonization-Carbonization is a process in which the more volatile substances of the organism (hydrogen, oxygen, nitrogen, etc) are removed, leaving behind the carbon.These fossils typically appear as a thin, dark film on the rock. This type of preservation is common among plant fossils. cast is when that mold has been filled in with rock or minerals. Carbonization-Carbonization is a process in which the more volatile substances of the organism (hydrogen, oxygen, nitrogen, etc) are removed, leaving behind the carbon.