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.
Bogoslof Island is the largest of a cluster of small, low-lying islands comprising the emergent summit of a large submarine stratovolcano. This stratovolcano rises about 6000 ft (1800 m) from the Bering Sea floor, but is only about 300 ft (100 m) above sea level at its highest point . Bogoslof volcano is unusual in its location. It is slightly north of the main Aleutian volcanic front, and is interpreted as a back-arc feature.