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 Hawaiian volcano of Mauna Kea (white mountain) is considered one of the most extreme cycling climbs in the world. From the beach in Hilo to the telescopes at the summit it's 4,200m of altitude gain in one continuous climb of nearly 70km. In fact, so large is Mauna Kea that if you measure from its actual base (many kilometres below the ocean) it's height is more than 10,000m, making it the tallest mountain on Earth.