Which statement best describes wavelengths of sunlight that are longer than 700 nanometers?

Visible light spans roughly 400 to 700 nanometers, with red light at the long-wavelength end. Sunlight with wavelengths longer than about 700 nanometers is infrared radiation, so the statement that these wavelengths form the infrared part of the spectrum is correct. Ultraviolet wavelengths are shorter than visible light.

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