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.
Mauna Kea (in Hawaii) is the world's tallest mountain peak. When measured from the ocean floor to its summit, it's 33,476 feet tall (10,204 meters), but only its top 13,803 feet (4,207 meters) extend above sea level.Mauna Kea is also the world's tallest volcano.allest mountain from sea level (highest): Mount Everest (also known as Qomolangma, or Chomolungma) in Asia's Himalayas is the world's highest mountain peak. When measured from sea level to its summit, it's 29,029 feet (8,848 meters) tall.