I missed a class for school and it is hard to do these two questions for homework because of it. They are both fill in the blank. The answers can be used more than once and are: Gamma rays, X-rays, Ultraviolet Light, Visible Light, Infrared, Microwaves, and Radio/TV (one). The first question is: Cannot pass trough lead _____________. The second one is: Is filtered by the ozone layer: _______________
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