Each type of electromagnetic wave has practical uses. Radio waves are used for television and radio. Microwaves are used for satellite communications and for cooking food. Infrared is used in electrical heaters, for cooking food and in infrared cameras. Visible light is used in fibre optic communications. Ultraviolet is used in energy efficient lamps and for sun tanning. X-rays and gamma rays are used in medical imaging and treatments.
Higher tier: you should be able to explain why a wave is suitable for its job. Radio waves have long wavelengths, so they can travel long distances around the Earth and are not strongly absorbed by the air. Microwaves pass through the atmosphere and reach satellites, and they are absorbed by water molecules, so they heat food. Infrared is absorbed by surfaces, which warms them, and warm objects emit it, so infrared cameras can see them. Visible light can be reflected inside a thin glass fibre, so it carries signals. X-rays pass through soft tissue but are absorbed by bone, so they show bones in an image.