Thhalf lifof Carbon 14 is approximately __________ years.
A) 16,000
B) 11,200
C) 8,200
D) 5,370
E) none of these
Correct Answer:
Verified
Q42: When dithEarth's crust form?
A)2.9 billion years ago
B)3.2
Q43: Lantetrapods evolvejust prior to which mass extinction?
A)1st
B)2nd
C)3rd
D)4th
E)5th
Q44: Which layer of sedimentary rock is thdeepest?
A)Bright
Q45: Which group is geologically oldest?
A)prokaryotes
B)dinosaurs
C)bees
D)butterflies
E)bony fish
Q46: Which list is in order of most
Q48: Thpresencof reptiltracks in sandstonformations is an indication
Q49: Which layer of sedimentary rock shows thpresencof
Q50: Which layer of sedimentary rock shows thpresencof
Q51: Which event is geologically tholdest?
A)formation of Pangaea
B)evolution
Q52: Which layer of sedimentary rock shows thpresencof
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