Вставить артикли.there is more water than land on our planet. the largest and deepest ocean in world is pacific, then comes atlantic. indian ocean is only little smaller. smallest ocean is longest river in usa is mississippi, largest sea is mediterranean, deepest lake is lake baikal.large masses of land are called continents. they are europe and asia, north and south america, australia and antarctica.there are mountain chains in many parts of world. some of them such as urals are old, others like caucasus are much younger. highest mountain chain, which is called himalayas, is situated in asia.
