Question: where does sea floor spreading take place brainly
[{'answer': 'mid-ocean ridges', 'provenance': [{'wikipedia_id': '145698', 'title': 'Seafloor spreading', 'start_paragraph_id': 1, 'start_character': 47, 'end_paragraph_id': 1, 'end_character': 63, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '145698', 'title': 'Seafloor spreading', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 169, 'bleu_score': 0.8330787010500831, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14892114264406871228}, 'section': 'Section::::Abstract.'}]}]