If you could hop in a time machine and go back millions of years,which of the following are you unlikely to find when you step out of your time machine?
A) An Earth whose atmosphere contains eight times more carbon dioxide in its atmosphere than it does today
B) An Earth with continents and oceans far different from those of today
C) An Earth so warm that it lacked polar ice caps
D) An Earth completely inundated by sea,lacking any land masses
Correct Answer:
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Q1: Which of the following parts of the
Q2: Recent research indicates that the variation in
Q4: Greenhouse gases trap _in the atmosphere.
A)visible light
B)gamma
Q5: As climate change continues,we expect that the
Q6: If Earth had no atmosphere,_ .
A)Earth would
Q7: When volcanoes erupt,they emit_ into the atmosphere,resulting
Q8: Which one of the following has been
Q9: Milankovitch cycles _.
A)are changes in Earth's rotation
Q10: The Younger Dryas event tells us that
Q11: Which of the following has the highest
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