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higher frequencies include X-rays
Ultraviolet light can give you a suntan (or burn), and too much of certain UV frequencies can increase one's risk of skin cancer. Some frequencies are blocked by the Earth's [[ozone layer]].
Ultraviolet light can give you a suntan (or burn), and too much of certain UV frequencies can increase one's risk of skin cancer. Some frequencies are blocked by the Earth's [[ozone layer]].
Even higher freqencies include X-rays and gamma rays.
Even higher frequencies include X-rays and gamma rays.