What is the difference between chemical evolution and biological evolution?

The Word evolution is a noun derived from the verb 'to evolve', which means to change over time. In science, only one type of evolution is given the title evolution in a special sense, where in a scientific context it refers solely to the changing of living organisms, the evolution of living organisms through genetic changes in populations which lead to adaptations which lead to speciation, all over long periods of time. Chemical evolution may sometimes refer to the mishmash of carbon based chains and forming aminoacids in the Precambrian seas prior to true life-formation; abiogenesis.

It is not a special term of 'evolution' as that only occurs in the biological sense. It is therefore an evolution from the sense of the verb 'evolve' which merely unspecifically denotes a change.