wrote her letters in a colloquial style / the broken syntax and casual enunciation of conversational English Similar: informal (used of spoken and written language)
Best Answer: The mid-oceanic ridge can be described as the longest mountain range. It includes the Mid-Atlantic ridge, and all other such ridges. They form a complete system that is 65000 km long. The Mariana's Trench is the deepest. It's 11.03 kilometres deep. I don't know how you define underwater mountain.
Although most of it is underwater, some consider Mauna Kea the tallest mountain in the world. It measures more than 33,000 feet from the ocean's floor. Mt. Everest is the tall â¦ est mountain above water and its elevation is 29,002 ft (8,840 m). 4 people found this useful.