The answer is, Eric suffered a blow to his head during a fight, and found that afterward he was unable to hear. it is likely that his ear lobe was injured.
Answer:
Uluru/Ayers Rock
Explanation:
Uluru, or Ayers Rock, is a commonly known large rock that is also a sacred site.
It is used to determine the age of an ancient object. The process is called radiocarbon dating. Carbon-14 is a naturally present isotope that is produced when cosmic rays collide with nitrogen and as a result it is oxidized to be become CO2.