Answer:
infrared
source: toaster
benefit: helps us to heat foods (haha wala na akong maisip)
harm: can lead to significant biology effects on the human skin.
ultraviolet
source: light bulb/ natural source is sun
benefit: it is easier to dim with rheostats/ it can give or create of vitamin D to people
harm: can increase the risk of cataract and age-related mascular degeneration.
x-ray
source: radon gas/radon
benefit: help to see what's the inside without having to make an incision.
harm: can damage the cells in your body.
gamma ray
source: radio therapy/ natural source is neutron stars or sun
benefit: more easily accessed
harm: radiation can damage DNA
hope it can help you, goodluck!
