Answer:
D
Explanation:
Carbon 14 (C14) exists in the atmosphere in constant proportion
C14 decays to carbon 12 at a constant rate when the organism dies
Every 5,730 years the amount of C14 is reduced by 50% half-life
Accurate to 70,000 years
joint and cartilage. . .
supreme power is vested in the people and exercized directly by them or there elected agents under a free electoral system.
all are correct