(Answered) Beginning in the late 19th century and continuing into the

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Beginning in the late 19th century and continuing into the 20th century, the industrial revolution was fueled by coal and spewed enormous volumes of ¹⁴C-depleted CO₂ into the atmosphere.

a) Why is coal ¹⁴C-depleted?

b) How would the increase in ¹⁴C-depleted CO₂ affect the date of a very old object in which its ¹⁴C/¹²C ratio was compared to the 20th-century ratio?

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