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Type: Multiple-Choice
Category: Planetary Motion
Level: Grade 7
Author: LBeth
Last Modified: 10 days ago

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Planetary Motion Question

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Grade 7 Planetary Motion

Which is the best estimate of how frequently a total solar eclipse can be viewed from somewhere on Earth?
  1. once every 18 days
  2. once every 18 months
  3. once every 18 years
  4. once every 18 centuries
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