Examlex
Which of the following visible colours of light has the longest wavelength?
Sleep Aid
A product or medication used to promote or improve sleep, often utilized by individuals with insomnia or other sleep disorders.
Caffeinated Coffee
A type of coffee beverage that contains caffeine, a stimulant that can enhance brain function and increase alertness.
Television
An electronic device that receives television signals and displays them as visual images, often used for broadcasting entertainment and information.
Evening Care
Personal care activities conducted in the evening to prepare an individual for a comfortable and restful night.
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