Someone else already asked this question and it got a lot of good reviews.
In space or population? If in population, then its Tokyo
Thats whats called the Ecliptic.
Of the seven (7) continents, South America is the fourth (4th) largest.
Asia, Africa, and North America, in that order, are larger.
Antarctica, Europe, and Australia, in that order, are smaller.
71% of the Earth is covered in water.