https://padlet.com/leejay2/g3ok6ucags7royyw Lee- Period 5 en-us 2021-04-28 16:36:37 UTC 2026-02-11 15:01:45 UTC hello@padlet.com leejay2 https://padlet.com/leejay2/g3ok6ucags7royyw/wish/1470006847 2021-04-28 16:42:09 UTC https://padlet.com/leejay2/g3ok6ucags7royyw/wish/1470006847 leejay2 https://padlet.com/leejay2/g3ok6ucags7royyw/wish/1470019681 2021-04-28 16:44:30 UTC https://padlet.com/leejay2/g3ok6ucags7royyw/wish/1470019681 https://padlet.com/leejay2/g3ok6ucags7royyw/wish/1470450147 plate tectonics is 

1. a theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates which move slowly over the underlying mantle.
2. 
   
   • Divergent boundaries -- where new crust is generated as the plates pull away from each other.
   • Convergent boundaries -- where crust is destroyed as one plate dives under another.
   • Transform boundaries -- where crust is neither produced nor destroyed as the plates slide horizontally past each other
   • 3.

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