Group 1: Natural Disruptions, Tsunami from an undersea earthquake, Volcano eruption on an island, Wildfire caused by lightning, Chronic wasting disease in deer, Group 2: Man-made Disruptions, Water pollution from detergents, Introduction of pigs and monkeys to Mauritius by humans, Invasive buckthorn trees replacing native oak trees, Coral bleaching from rising sea temperatures caused by climate change,

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