Jeopardy! Round, Double Jeopardy! Round, or Tiebreaker Round clues (5 results returned)
| #7952, aired 2019-03-19 | A BIT OF THE OLD ULTRAVIOLET $400: UV rays do you good when they stimulate production of this rickets-fighting vitamin Vitamin D |
| #7952, aired 2019-03-19 | A BIT OF THE OLD ULTRAVIOLET $800: Much of the sun's hazardous UV radiation gets absorbed in the stratosphere by this form of oxygen, O3 ozone |
| #7952, aired 2019-03-19 | A BIT OF THE OLD ULTRAVIOLET $1200: Glass-lining substances called phosphors absorb UV radiation to make these energy-efficient lamps glow fluorescents |
| #7952, aired 2019-03-19 | A BIT OF THE OLD ULTRAVIOLET $1600: This dark pigment is your body's defense against the harmful effects of ultraviolet radiation melanin |
| #7952, aired 2019-03-19 | A BIT OF THE OLD ULTRAVIOLET $2000: UV-B radiation penetrates the ocean surface, killing these tiny drifting organisms that include phyto- & zoo- types plankton |
Final Jeopardy! Round clues (0 results returned)
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