Question: what name is used to indicate all sources of pollution caused by human activity
[{'answer': 'anthropogenic', 'provenance': [{'wikipedia_id': '1728672', 'title': 'Human impact on the environment', 'start_paragraph_id': 1, 'start_character': 35, 'end_paragraph_id': 1, 'end_character': 48, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1728672', 'title': 'Human impact on the environment', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 903, 'bleu_score': 0.9634320912002211, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17572924481771270023}, 'section': 'Section::::Abstract.'}]}]