island arc

<a href="http://goanimate.com/videos/0Yg1yQhLLdgI?utm_source=embed&amp;uid=08YKk0da0uqk" target="_blank">Deep Ocean Basins:Trenches and Islands</a> by <a href="http://goanimate.com/user/08YKk0da0uqk" target="_blank">Mary cruz</a> on <a href="http://goanimate.com/?utm_source=embed" target="_blank">GoAnimate</a><br />
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