Converging plate boundaries. continent to continent plate boundary converging if you want to be more specific.
to converge means to bring something together, that's how I always remembered. Transform boundaries move side to side, and are the reason for mainly fault lines, such as the San Andreas Fault in California. All plate boundaries do occur at subduction zones.
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Two web links or two links to the disaster? Two web links you can find easily enough on google, two links to the disaster would be the neglect of the ukrainian gov't. (Poorly designed experiment at reactor 4) and workers shut down the reactor’s power-regulating system and its emergency safety systems would be two "links" to why it played out the way it did
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