The first diverse animal world appeared during the
A) Cambrian explosion.
B) Ordovician explosion.
C) Silurian explosion.
D) Devonian explosion.
E) Carboniferous explosion.
Correct Answer:
Verified
Q38: To determine the age of rocks,the decay
Q39: The half-life of potassium-40 is 1.3 billion
Q40: Half-life is an estimate of
A) half of
Q41: If a radiometric analysis of an isotope
Q42: The first fossil remains are from this
Q44: Where are MOST fossils found?
A) igneous rock
B)
Q45: The half-life of an isotope is 5,000
Q46: Where would the most lead be found
Q47: This gas began to accumulate between 3
Q48: Miller and Urey demonstrated the formation of
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