The loss of a river system due to contamination.
An example of a severe disruption to an ecosystem is(1 point) Responses seasonal flooding of a river. seasonal flooding of a river. the loss of a river system due to contamination. the loss of a river system due to contamination. repurposing a building in a downtown area. repurposing a building in a downtown area. a thunderstorm that knocks down some trees.
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