A 14 Geological evidence based on several radiometric techniques has provided a

A 14 geological evidence based on several radiometric

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A14.
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Geological evidence based on several radiometric techniques has provided a scientifically well-accepted age for the Earth. Represent that age of the Earth as the 100-yard length of a football field, and any time interval can be represented as some distance on the field. (So something that lasted one-tenth of the age of the Earth would be ten yards, and something that lasted one-half of the age of the Earth would be fifty yards.) On this scale, how long have you personally been alive?A) 50 yards.B) 10 yards.C) 1 yard.D) 1 inch.E) Much less than the thickness of a sheet of paper.Feedback: If the 4.6 billion years of Earth history are 100 yards, then the few thousand years of written history are just one-millionth of that history, just over the thickness of a sheet of paper. And your small piece of written history must be only a small fraction of a sheet of paper, roughly 1/200th or so.Points Earned: 1.0/1.0 Correct Answer(s):E15. What is accurate about the scientific results learned by counting tree rings?old.old.no older.older.Feedback: The longest continuous tree-ring record is 12,429 years, but that was published a fewyears ago, the trees grew in soil that was already there, and there is lots of older wood around. So, the tree rings show that the Earth is more than 12,429 years. But, we don’t have overlapping trees back to the formation of the Earth about 4.6 billion years ago, so tree rings do not show thatthe Earth is 4.6 billion years old. Points Earned: 1.0/1.0
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  • Fall '08
  • ALLEY,RICHARDBANANDAKRISHNAN,SR
  • Geology

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