Why black umbrella is used in summer?

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  2. #absorbs
  3. #mainly
  4. #whole
  5. #radiation
  6. #being
  7. #black
  8. #might
  9. #heated
  10. #useful
  11. #process
  12. #spectrum
  13. #think
  14. #emits
  15. #protection
  16. #infra
  17. #could
  18. #umbrella
  19. #maximum