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Item PT039001: Mountains have been developing continuously throughout earth's history.

Which of the following is TRUE about when mountains have developed on earth?

  1. All mountains on earth today were present when the earth formed.
  2. Mountains developed for a while after the earth first formed, but no new mountains are developing today.
  3. Mountains have been developing continuously since the earth formed and mountains are still developing today.
  4. Mountains have developed since the earth formed, but only occasionally.
Distribution of Responses
Chart showing distrubtion of responses for Item PT039001
Students Responding Correctly
Group Correct Total Percent
Overall 2059 3144 66%
  6–8 1273 2030 63%
  9–12 778 1101 71%
Primary Language

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NGSS does not address the time at which mountains began to form on Earth.