Text: radio carbon dating indicated that the remains were 5300 to 5200 years old.

Correct capitalization: Radio carbon dating indicated that the remains were 5300 to 5200 years old.

Text: last minute apartment to let in barcelona | barcelona-home

Correct capitalization: Last minute apartment to let in Barcelona | Barcelona-Home

Text: the volume level is represented graphically in percentage or decibels (db).

Correct capitalization: The volume level is represented graphically in percentage or decibels (dB).

Text: the closest airport for pomos is:

Correct capitalization:
The closest airport for Pomos is: