It covers 9% of the Earth's total surface area (or 30% of its land area), and has the longest coastline, at .
ɪt kˈʌvɚz nˈaɪn pɚsˈɛnt ʌvðɪ ˈɜːθz tˈoʊɾəl sˈɜːfɪs ˈɛɹiə ɔːɹ θˈɜːɾi pɚsˈɛnt ʌv ɪts lˈænd ˈɛɹiə, ænd hɐz ðə lˈɔŋɡɪst kˈoʊstlaɪn, æt .