Do humans need sunlight?

Related questions

1. How do we get sunlight?
2. Can humans see UV light?
3. Can sunlight help hair growth?
4. Why is sunlight white light?
5. What is the wavelength of sunlight?
6. Is sunlight good for skin?
7. Can humans live without sunlight?
8. How much sunlight is healthy?
9. Can UV kill fungus?
10. Does hair absorb sunlight?

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18. #absorb
19. #sunlight
20. #vitamin
21. #although