Theoceansareuniquetoourplanet.Nootherplanetinoursolars...
問題詳情: Theoceansareuniquetoourplanet.Nootherplanetinoursolarsystemhasliquidwater.Theoceanscoverabout70%oftheearth'ssurface. Theycontainabout97%oftheearth'swatersupply.Lifeonearthoriginatedinthes...