the collision of tectonic plates are found at the convergent boundaries
transport_layer_protocol is protocol_stack_layer. tectonic_plate is stone. perulactone is withanolide. doldrums is intertropical_convergence_zone. data_link_layer_protocol is protocol_stack_layer. earth has tectonic_plates intertropical_front is intertropical_convergence_zone. coordinate_bond is covalent_bond. frontier is boundary.