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OpenStudy (vera_ewing):
PES uses which type of electromagnetic radiation? A. Ultraviolet and visible B. Ultraviolet and X-rays C. Radio D. Infrared
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OpenStudy (vera_ewing):
@JoannaBlackwelder It's B right?
OpenStudy (vera_ewing):
@nincompoop
OpenStudy (joannablackwelder):
Yep, good job! :)
OpenStudy (vera_ewing):
thank you so much! :)
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