Thursday, January 15, 2015

continental drift/seafloor spreading

continental drift is when the continents drift apart and four evidences are rock distribution which is forms of minerals that turn into rocks. mountain ranges are a line of mountains connected high ground. evidence of glaciation is in earth climate.




 seafloor spreading is when the plate tectonics start to spread under the ocean and it keeps spreading.  a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge.

Name 2 proofs that seafloors is spreading..How did they prove it? 

1. 

2. 

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