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US federal officials say it is time to consider the possibility that North Atlantic right whales could become extinct, unless new steps are taken to protect them. The National Oceanic and Atmospheric Administration (NOAA) has said there are only about 450 North Atlantic right whales left and 17 have died in 2017.…
Tüm sınavların, oyunun 80 aşamasının ve daha fazlasının kilidini aç, sınırsız simülasyon yap.