what is the longest mountain rangeis under the sea?
813752
the Earth's longest mountain range lies under the sea. More than 56,000 kilometers (35,000 mi) long, this mountain range, called the Mid-Ocean Ridge system, snakes its way around the globe. This whole study of undersea is fascinating beyond words.. The unknowns there is as(not quite) mysterious as that of space
260667
Hawaii.. the whole island is a volcano.. must of which is undersea.. now if you add that to the over all height. Hawaii is much taller then Mt. Everest.\n\nMauna Kea is the tallest mountain on earth!
411979
It depends on what you mean by "outer atmosphere".  The deepest place in the ocean is in the Mariana Trench at 10,911 meters below sea level.  A commonly accepted limit for the Earth's atmosphere is 100 kilometers.  This gives a total of 110.911 kilometers or 68.92 miles.
36295
Approx. 295 feet above sea level.
860329
the land masses do not float on the sea rather the seas fill up the low lying areas of the earths crust so when you dive to the bottom of the sea you will hit the earths crust(after going through various layers of mud and organic matter. the deepest-known part of the ocean measures 10,924 meters (35,839 feet), in the Marianas Trench, i think i'm right in saying that we have dived down to around 7000m (7km).\nOnce you hit the crust (sea floor) and keep going you would then go through the earths various layers (not possible!) and eventually come out the other side!
1159833
Mauna Kea in Hawaii is the world's tallest mountain from base to peak! Its base is on the sea floor and it rises 33,480 feet (10,314 meters) in total, reaching 13,796 feet (4205 m) above sea level.
665500
Challenger Deep got its name from the British survey ship Challenger II, which pinpointed the deep water off the Marianas Islands in 1951. Then in 1960, the US Navy sent the Trieste (a submersible - a mini-submarine designed to go really deep) down into the depths of the Marianas trench to see just how far they would go. They touched bottom at 35,813 ft/10,915m. That means, while they were parked on the bottom in the bathyscaphe, there were almost seven miles/11km of water over their heads! \n\nIf you cut Mount Everest off at sea level and put it on the ocean bottom in the Challenger Deep, there would still be over a mile of water over the top of it!
616501
It`s in hawaii (No cheat) but i don`t know exactly the name but the most important thing is that it`s height from free seas level is only 2000-3000 m but from the base in deep pasific it`s height is about 10000-12000 m ! \nHigher that everest !\nDon`t forget an alone mountain on mars with 20000 m in height ! (I don`t know the name again)\nHighest mountain around the solar system and till know all around the univers !
1012618
Orogeny is the building of mountains.  Most mountains are formed when one techtonic plate subducts under another pushing the top plate up.  Mount Everests includes sedimentary rock that was part of the sea.  The subduction can sweep seawater and silt under a plate setting up the conditions for huge volcanoes as magma is formed and rises through the stratta above as in the Andes.
278999
Pacific Ocean - The deepest known point on Earth is at the bottom of the Mariana Trench, a depression in the floor of the western Pacific Ocean, just east of the Mariana Islands. \n\nThe Mariana Trench is 1,554 miles long and averages 44 miles wide. Within it, about 210 miles southwest of Guam, lies the deepest known point on Earth. Named the “Challenger Deep” for the British survey ship Challenger II that located it in 1951, this underwater gorge plunges to a depth of nearly 7 miles! It is deeper than Mt. Everest is tall.
1140792
Not sure, but I know La Paz (capital of Bolivia) is 4000m about sea level because I was there and had really bad altitude sickness!
588964
The deepest part of the Arctic Ocean is a mile deep. It is called the Hidden Ocean by researchers. It is located north of Alaska.
977580
Mount Everest is the highest point on Earth as measured by the height of its summit above sea level - 8,848 meters (29,028 feet).  It is part of the Himalaya range in High Asia, and is located on the border between Nepal and China.\n\nBut if you count the highest mountain from its base to its summit, the answer is Mauna Loa in Hawaii (most is under water, but its total height is 30,080 ft (9,170 m).
434546
The Mariana Trench (or Marianas Trench) is the deepest known submarine trench (35,798 feet), and the deepest location in the Earth's crust itself. It is located in the floor of the western North Pacific Ocean, to the east of the Mariana Islands
1054724
About 4,800 feet above sea level.
781166
It is impossible to count the number of mountain ranges in the world because there is no single definition of what constitutues a mountain range.  Extensive mountain ranges like the Himalaya, the Karakoram, the Hindu-Kush, the Andes, the Rockies, and the Alps are composed of many smaller mountain ranges.  The lists below include some of the more important ranges.
969525
Mount Everest in the Himalayas is widely regarded as the tallest mountain in the world. However it's height is only from Sea level.\n\n"Hawaii's Mauna Kea, though, rises an astonishing 33,476 feet (10,203 meters) from the depths of the Pacific Ocean floor. Measuring from base to peak, Mauna Kea is the tallest mountain on earth."