What is important about amounts of carbon-14 in living samples?
A) It is a greenhouse gas.
B) It is a direct indicator of amounts of carbon-12.
C) It can indicate sunspot activity.
D) It gives a direct measure of paleo-ocean temperature.
E) It is an indicator of sea level rise.
Correct Answer:
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Q14: Which of the following is considered a
Q15: What is the cryosphere?
A) The Earth's water
B)
Q16: How do scientists measure the amount of
Q17: Which of the following is a statement
Q19: Which of the following is NOT a
Q20: Which of the following is NOT a
Q21: Which of the following is NOT a
Q22: Which of the following is a reason
Q23: Which of the following is NOT a
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