Assertion: ultraviolet | /r/Causes | the production of vitamin d
Facets:
Source sentences:
text: When ultraviolet light strikes human skin, it triggers the production of vitamin D, which promotes the growth of bones and teeth.
text: When ultraviolet light strikes human skin, it triggers the production of vitamin D, which promotes the growth of bones and teeth.
text: When ultraviolet light strikes human skin, it triggers the production of vitamin D, which promotes the growth of bones and teeth.