How many ice ages occurred in the first 2 billion years of Earth's history?
A) 0
B) 1
C) 2
D) 5
Correct Answer:
Verified
Q38: The Cretaceous period was in this era
A)Cenozoic.
B)Mesozoic.
C)Paleozoic.
D)Precambrian.
Q39: Of the past 2.5 billion years,what %
Q40: The geologic column
A)was constructed by looking at
Q41: How long ago was the last major
Q42: The Intergovernmental Panel on Climate Change (IPCC)report
Q44: What was significant about African Humid Period?
A)Northern
Q45: During the last glaciations,what were the moisture
Q46: Should Earth be considered a "warm" planet
Q47: During the current geologic period,ice volume changes
Q48: Carbon dioxide
A)is a noble gas.
B)is a solid
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