What is the deepest fresh water lake in the world?
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The world's deepest lake is Lake Baikal, in Siberia, Russia. The deepest point of the lake, the Olkhon Crevice, has a depth of 1,637 m (5,371 ft), of which 1,181 m (3,875 ft) are below sea level. It is also the oldest freshwater lake on Earth, having formed between 20 and 25 million years ago. Baikal also contains one-fifth of all the world’s fresh surface water! The lake is roughly crescent-shaped, 636 km (395  miles) long, with a surface area of 31,500 km² (12,200 miles²).
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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\nThis underwater gorge plunges to a depth of nearly 7 miles! It is deeper than Mt. Everest is tall.\n\nKaiko entered the record books in 1995 when it dived almost 11,000 meters to the bottom of Challenger Deep -- the world's deepest stretch of ocean -- in the Maruyama Trench, near Guam, in the western Pacific. 2nd link:\n\n\nSee link:
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Lakes Huron, Ontario, Michigan, Erie, and Superior
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The Mariana Trench (or Marianas Trench) is the deepest known submarine trench, 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 at 11°21′N 142°12′E, which is near Guam. The trench is the boundary where two tectonic plates meet, a subduction zone where the Pacific Plate is being subducted under the Philippine Plate. The bottom of the trench is further below sea level than Mount Everest is above sea level.\n\nThe trench has a maximum depth of 10,911 m (35,798 feet) below sea level. Taking into account its latitude and the Earth's equatorial bulge, this puts it at 6,366.4 km from the centre of the Earth. The Arctic Ocean, on the other hand, is 4-4.5 km deep, which would put its floor at ~6,352.8 km from the Earth's centre, 13.6 km closer.\n\nIt was first surveyed in 1951 by the British navy vessel, Challenger II, which gave its name to the deepest part of the trench, the Challenger Deep. Using echo sounding, the Challenger II measured a depth of 5,960 fathoms (10,900 m) at 11°19′N 142°15′E. This sounding was repeatedly made using earphones to hear the return of the signal as the stylus passed across the graduated depth scale, whilst the timing of the speed of the echo-sounding machine, a necessary part of the process, was made with a hand held stopwatch. For these reasons it was considered prudent to subtract one scale division (of 20 fm) when officially reporting a new greatest depth of 5,940 fm (10,863 m).\n\nIn 1957, the Russian vessel Vityaz reported a depth of 11,034 m (36,201 ft), dubbed the Mariana Hollow; this measurement has never been replicated and is not considered accurate. In 1962 the M.V. Spencer F. Baird recorded a greatest depth of 10,915 m (35,810 ft). In 1984 the Japanese sent the Takuyo, a highly specialized survey vessel out to the Mariana Trench and collected data using a narrow, multi-beam echo sounder; they reported a maximum depth of 11,040.4 k1 (this is also reported as 10,920±10 m 2). The most accurate measurement on record was taken by another Japanese probe, Kaiko, on March 24, 1995: 10,911 m (35,798 ft) 3.\n\n \nJanuary 23, 1960: Just before the diveIn an unprecedented dive, the U.S. Navy bathyscaphe Trieste reached the bottom at 1:06 pm on January 23, 1960 with U.S. Navy Lt. Don Walsh and Jacques Piccard. Iron shot was used for ballast, with gasoline for buoyancy. The onboard systems indicated a depth of 37,800 ft (11,521 m), but this was later revised to 35,813 ft (10,916 m). At the bottom Walsh and Piccard were surprised to discover soles or flounder about one foot (30 cm) long, as well as shrimp. According to Piccard, "The bottom appeared light and clear, a waste of firm diatomaceous ooze".\n\nOn November 3rd, 2005, Michael Milord, a sixth-grader from Admiral Farragut Academy, discovered, using Google Earth [1](a computer program that uses satellite imagery in 3D), what he called the “Milord Fist”. Dr. Frank Muller-Karger, USF, College of Marine Science said [2]“The formation Michael noticed is the Mariana Basin, I am sure nobody has seen the similarity between “Milord Fist” and this huge system of submarine ridges, mountains and deep trenches," he said.\n\nAt the bottom of the Mariana Trench, water exerts a pressure of 1086 bar (108.6 MPa or 15,751 psi).
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The deepest point in the ocean is the Mariana Trench located in the Pacific Ocean near the Northern Mariana Islands. It has a maximum depth of  (35,838 ft) It was fully surveyed in 1951 by the British naval vessel, "Challenger II" which gave its name to the deepest part of the trench, the "Challenger Deep".Much of the bottom of the world's oceans is unexplored and unmapped. A global image of many underwater features larger than 10 km was created in 1995 based on gravitational distortions of the nearby sea surface.
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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.
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Mashu, The Clearest Lake In The World\n\nThe Lake Mashu, located in the eastern part of Hokkaido, Japan,is said beautifull and the clearest lake in the world. The Lake Mashu is 20km around, an oval shaped crater lake and covers an area of 19.6 square meters. The deepest part of the lake is 211.5m. The surface of a lake is 351m high above sea level and surrounding by 500-700m high cliffs. The mountain in the picture is called the Mashudake and the altitude is 858m. The part of 30m high from the summit, it is actualy the 240m high volcano, sticking out from the lake, looks like a small island floating in the lake.\n\nAdd to this....\nCrater Lake in Oregon Seen Becoming Cloudy \nAs per New York Times Thursday, June 29, 2006\n\nOften cited as the clearest lake in the world, Crater Lake in Oregon is getting progressively cloudier, and scientists think microscopic plant life could be the cause. \n\nReadings taken in mid-August showed that parts of the lake were half as clear as 15 years ago, said Doug Larson, a scientist for the Corps of Engineers in Portland. \n\nThe cloudier water may be due to high concentrations of phytoplankton, or tiny plantlike organisms, found this summer in the upper 130 feet of the lake, Mr. Larson said.
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The Dead Sea is the lowest exposed point on the Earth's surface. It is on the border between the West Bank, Israel, and Jordan on the Jordan Rift Valley. This body of water is the deepest hypersaline lake in the world.\nThe Dead Sea is 67 km long, up to 18 km wide and 799 m below sea level in depth at its deepest point. The surface of the Dead Sea is at an elevation of 394.6 m (1269 ft) below sea level (2005 figure).
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The Challenger Deep is the deepest known point in the oceans, 10,911 meters (35,797 feet) deep at its maximum\nSource(s):\nhttp://en.wikipedia.org/wiki/Challenger_Deep
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Seneca lake is the largest, with an average depth of 291 ft and a maximum depth of 618 feet.
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Lake poopo is in Bolivia i do not know about any lake swallow.
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The Pacific Ocean\naverage depth -- 12,925 feet, or almost 2 1/2 miles. The Pacific also has the largest known maximum depth, in the famous Mariana Trench; this maximum depth is 35,840 feet, or a little over 6 3/4 miles. (That's\ndeep!)
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Deepest of all Great Lakes in North America (including Ontario) is \nLake Superior\n1,332 ft (406m) at deepest point\n\nhttp://www.epa.gov/glnpo/factsheet.html\n\nhttp://worldatlas.com/webimage/countrys/namerica/greatlk.htm
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Most freshwater lakes have zones of temperature according to depth, known as stratification. Have you ever noticed how when you wade into a lake or dive down you encounter a layer of water that is much colder? This is stratification. Fresh water is densest, or heaviest, when it is 39 degrees Fahrenheit.  \n\nDuring late summer the air cools the surface water till it begins to sink, forcing lighter less dense and warmer water to the surface. If at some point all the water in the lake gets to 39 degrees, this temperature-induced mixing will stop, but wind can still force the water to mix. \n\nThis mixing action by wind and cooling is called turnover. \n\nDuring spring, the process reverses itself. Ice melts at the surface. When ice is on the surface of a lake the coldest water is often just under the ice. As this water warms up and becomes the same density and temperature as the deeper water it takes very little wind energy to cause the water to mix, or turnover. As the surface water warms even more, it becomes less dense than the deeper water and forms a stratified layer. After this stratification forms it will remain stratified.
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10,916 meters (35,814 feet), to Challenger Deep in the Marianas trench, which is the deepest known part of the Earth's oceans.  The Marianas trench is in the western north Pacific Ocean.  \n\nSee sources.
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Lake Titicaca.\nThe highest lake in the world!\n\n\nGoodluck!
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Canada has the most lakes than any other countries combined so North America is the continent with the most lakes.\n\nAnd for the other one 57% of the world's population live in Asia. Chech out wikipedia for more geography facts. Hope this helps!