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.
The Big Island of Hawaii is constructed of 5 shield volcanoes: Kilauea, Mauna Loa, Mauna Kea, Hualalai, and Kohala. Mauna Loa is the largest active volcano and most massive mountain on earth occupying an area of 10,000 cubic miles. Mauna Kea at 13,796 feet is the highest.