Bohr's theory provides evidence for the existence of energy levels in the atom. According to Bohr's theory, electrons orbit around the nucleus in specific energy levels or shells, and each shell has a fixed energy level. When an electron jumps from a higher energy level to a lower energy level, it releases energy in the form of light. This explains the observed line spectra of elements, and supports the idea of quantized energy levels in the atom. Therefore, is correct.