Answer:
When an organism dies, its carbon-14 decays back into nitrogen-14 at a known rate, called a half-life (5,730 years). By measuring the remaining carbon-14 in fossils, scientists can estimate their age, helping us understand the history of life on Earth.
B. IB
C. dual enrollment
D. AP
b. Earth’s average temperature will decrease.
c. Earth will experience greater temperature extremes.
d. Earth’s average temperature will be unaffected.
Answer:
A
Explanation: