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.
I only know the longest mountain chain, which is the Andes Mountains. The Andes Mountain chain is 5,000 miles long, the longest in the world. The Andes is the second highest and second longest mountain range in the world. The Andes mountain.