Convert please hurry this is a test

Which statement is true about the part of the electromagnetic spectrum that human eyes can detect? it contains only the colors of the rainbow and television waves. o it is divided into seven ranges of wavelengths. it contains ultraviolet, visible, and infrared light. it is divided into nine ranges of wavelengths.

As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit

What is true for a substance that releases energy