Some biologists suggest that human activities may result in the loss of reef ecosystems. This would be unprecedented, as reef ecosystems have an unbroken history stretching over hundreds of millions of years.

Question

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Reef ecosystems have faced significant disruptions and extinctions in their history due to natural events such as asteroid impacts, volcanic eruptions, and climate changes, long before human activities became a threat.

Some Biologists Suggest That Human Activities May Result in the Loss