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Answer:
A scientific model is a simplified representation of a real-world system or process, based on a set of assumptions and supported by evidence. One well-known example of a scientific model is the atomic model of the atom, developed by Niels Bohr in 1913. This model posits that an atom consists of a small, positively charged nucleus surrounded by electrons that orbit the nucleus in fixed, discrete energy levels. The model was based on a combination of classical physics and quantum mechanics, and was supported by experimental evidence such as the observed emission and absorption spectra of atoms. The Bohr model was a significant improvement over earlier models of the atom, and laid the foundation for our understanding of the structure of atoms and the behavior of subatomic particles.