The use of antibiotics and pesticides.
Prebiotic chemical evolution gave rise to progressively more complex molecules and eventually to living organisms
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Chemical
This is a sign of a chemical reaction.
CRS is the acronym for Corrsion Resistant Steel; for the chemical composition of a typical material see the link below.
metabolic activity
trying to control pests with chemical
Metabolic activity is the activity in which the chemical transformations occur within the cells of living organisms. Metabolic activity is used to maintain an organisms life.
Prebiotic chemical evolution gave rise to progressively more complex molecules and eventually to living organisms
Quartz is a mineral that is highly resistant to chemical weathering. Marble is a mineral that is more susceptible to chemical weathering.
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.
The formation of life on earth has little to do with evolutionary sciences, which deal how lifechanges, not how it begins. The formation of life has as little to do, specifically, with evolution as it does with cell theory, or biogeography, or diet of organisms, or photosynthesis... it's a prerequisite for these processes.
Chemical activity
Only after experiments.
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Scientists believe that chemical evolution occurred around 3.5 billion years ago.
Scientists have believed that chemical evolution occurred about 4 billion years ago, shortly after the formation of the Earth. This process is thought to have led to the development of the first life forms on our planet.