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.
Eruption of an Hawaiian Volcano. A volcanic island in the South Pacific Ocean is also the biggest mountain in the world. Mauna Loa, one of the volcanic islands that make up the big island of Hawaii, is the most massive single mountain in the world because of its sheer bulk.