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permian
mastery UK /ˈpɜːmɪən/ US /ˈpɝmɪən/adjnounname
card 1 of 5 · fill in the blank
The _____ extinction wiped out nearly 96% of marine species.
card 1 of 5 · fill in the blank
The _____ extinction wiped out nearly 96% of marine species.