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LessieP LessieP
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11 years ago
The question is originally says "Some changes that occur on Earth are cyclic- they occur over and over again at regular intervals. List two changes that occur on a regular basis and can be considered cyclic and two changes that are not cyclic." I already have the cyclic changes- tides and seasons, but I'm stuck on the noncylic... Everything seems to be cyclic...
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wrote...
11 years ago
Tectonic plate shifts and volcanic eruptions
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