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Author Question: Currently, the strongest evidence for microfossils dates to approximately A) 4.0 billion years ... (Read 56 times)

renzo156

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on: Jul 27, 2018
Currently, the strongest evidence for microfossils dates to approximately
 
  A) 4.0 billion years ago
  B) 3.5 billion years ago
  C) 3.4 billion years ago
  D) 3.9 billion years ago

Question 2

Which of the following observations cannot be explained by the Big Bang theory unless we assume that an episode of inflation occurred?
 
  A) the fact that the temperature of the cosmic microwave background is almost the same everywhere
  B) the fact that about 25 of the ordinary matter in the universe consists of helium
  C) the existence of the cosmic microwave background
  D) the fact that the universe is expanding


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jaygar71

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Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

A


renzo156

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Reply 2 on: Jul 27, 2018
Gracias!

amcvicar

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Reply 3 on: Yesterday
Excellent

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