Geographically the 25 world's most hidden picture _ Mont Nimba _ do best

The world's largest island group of the world's largest island group consists of Indonesia 13000 multiple islands and the Philippines about 7 000 islands, known as the Malay Archipelago. One of the major islands of Indonesia have greater Sundas, Lesser Sunda Islands, Moluccas, Irian, Philippines, Luzon, Mindanao, m looks into the Islands. The archipelago also includes East Malaysia, Brunei Darussalam, Papua New Guinea, etc. Islands in the Pacific and Indian Ocean extends along the equator, between 6100 km north to South the maximum width 3500 km, approx. 243 million square kilometers. Western and Asian continent, separated with a Malacca and the South China Sea, the North and the Taiwan Straits, between bus and South Australia between the Torres Strait. In addition, the Northern Philippines island are within 10 degrees at the equator, with an average temperature of 21 �� c and annual rainfall from 8100 mm to 500 mm, with most areas more than 2000 mm. Each of the 7 to November the South-West Pacific generated more than 20 typhoons often attacks the Philippines. The Malay Archipelago of flora and fauna is very rich and various types. Rural and agricultural economy occupies an overwhelming advantage, the vast majority of rural residents to settle in the farming, the major crops is a commodity crops of rice, rubber, tobacco, sugar, etc. Forest resources provide precious wood, resin, rattan, etc. Oil is the main mineral, Tin production accounted for 10% of world production. Water resources are abundant, but not yet fully developed, the manufacturing industry, light industry mainly textile, paper, glass, SOAP, cigarettes, and other places of the world most thick (towards mount Chimborazo) South America Ecuador mountain of Chimborazo. From the center of the Earth to the mountain peak 6384.1 km. Chimborazo Summit West is located in the Andes cordillera, 6310 m above sea level, is Ecuador's highest peak. Had long been incorrectly identified as the highest peak of the Andes. It is a dormant volcano crater, there are many, many mountain glaciers, at about 4694 meters above the sea, covered with snow all the year round. 1880 United Kingdom alpinist E-Burr's first landing on the Summit. Here is the central plateau region of Ecuador, the main local to agriculture and livestock, mainly sheep, dairy, cereals, potatoes, fruit and fibre plants, etc. The world's highest plateau (satellite photos of the Qinghai-Tibet plateau) our proud Tibetan plateau is the largest plateau in China, which is also the world's highest plateau, "" "" "" "the roof of the world". Qinghai-Tibet plateau, an area of 240 million square kilometers, mostly at 3500 m above sea level and above, including all of the Tibet and Qinghai, Sichuan, Xinjiang and Gansu, Yunnan in the South. Plateau around the mountains around the Himalayas in the South, North and Altun, Kunlun mountains, West to the East, Karakorum, Hengduan Mountains. Plateau has tanggula mountains, mountain, gangdese nyainqentanglha mountains, etc. These mountains are more than 5500 meters, of which there are 16 Himalayan mountain more than 8000 meters. Plateau was separated into many mountains basin, loess. The numerous lakes, Lake, Nam are inland salt water lake, is rich in salt, borax, Glauber's salt, etc. Plateau is the birthplace of many great rivers of Asia, such as the Yangtze River, the Yellow River, Lancang and nu River, the River, have originated in this, the water is rich in resources. Because the terrain is high, low, in most parts of the heat more than 4500 metres the hottest month average temperatures below 10 degrees Celsius, there is no absolute frost-free period, cereals to mature, only suitable for grazing. Pastoralists to resistance possession of Alpine yak, sheep, goats. 4200 m Valley can be grown crops, barley, wheat, peas, potatoes, rapeseed, cold-resistant species. Yarlung zangbo River Valley in the low-latitude cold in winter, the winter wheat can be safe. Plateau on many hydropower station, coal mines, steel mills, chemical plants, wool factory, paper mill. Currently, Sichuan, Tibet, Yunnan and Tibet, Tibetan, etc 4 Highway into the plateau, near the railway will also be built in the plateau. Civil aviation flight pass Xining, Golmud, Lhasa. The world's largest desert (which is the Sahara desert to the East of satellite pictures, left deep blue part of the Atlantic) and most of North Africa plateau known as the Sahara desert, but the real sand only one-fifth of the total area. Desert, Sarir and stone desert. The three types of terrain is inlaid distribution. Sahara desert almost the entire North Africa, the West Atlantic Ocean, North Atlas mountains and Eastern Mediterranean, Arabian Sea, the South and the Sahel (Sahel is a half-desert dry steppe transition zone, full of thorns and shrubs). Western Sahara, Morocco, Algeria, Tunisia, Libya, Egypt, Mauritania, Mali, Niger, Chad and Sudan in 11 countries in the region. The characteristics of the terrain here is: seasonal overflow of shallow basins and large lowland OASIS; wide Stony Plain, covered with rock plateau; steep mountains, beaches, dunes and right beside you. Soil organic matter content in General, not suitable for biological growth, depression of the soil often salt. At about 500 million years ago, it has become the climate of the desert. Since then, dry and wet. Current desert mainly in two climate zones. North to dry subtropical climate, its seasonal climate change and the daily temperature differences are great. Precipitation is concentrated mainly in the winter, but in some dry regions, common in summer Heartthrob flood. Spring often has the hot air from the South, with the sand. Southern part of dry tropical climate, the winter often come from the North-East of sandy. Vast Sahara in many areas, there is no certainty that only oasis regions settled. Plants for various herbs; Palm; tamarix spp. and Robinia tree, animals such as Hare, Porcupine, Gazelle, Chameleon, Cobra, etc. Here full of metal ore, petroleum, groundwater, however due to traffic inconvenience limits developing the world's largest ocean (space see Pacific) in the Pacific region in Antarctica, North to the Arctic, the West and Asia and Australia, East Territories South and North America. Approximately one-third of the area of the Earth, is the world's largest ocean. Its area, not including the nearby is the sea, about $ 250 thousand square metres. The second area of the Atlantic Ocean twice, and the water capacity of more than two times. More than include Antarctica, Earth's land area combined. Average depth (not including in the case of sea) 4280 m. There are many in the case of the Western Pacific Ocean, from North to South for whiteThe sea, in the Okhotsk Sea, sea of Japan and the Yellow Sea, East China Sea and South China Sea. East River Heilongjiang, Yellow River, the Yangtze River, the Pearl River and the Mekong River have been in the case of sea into the Pacific Ocean. North East of 150o than Western gentle ocean floor. Western Pacific underwater 600 meters above the ridges forming islands in some places. From the Northwest Pacific Ocean to the South of the Aleutian Ridge extends to the thousand islands, Ogasawara, Mariana, Yap and Palau; to the East from Palau to Bismarck, Solomon and Santa Cruz; and finally from Samoa to the South to Tonga, kermadec, Chatham and Macquarie. Due to the North of the land and sea, and the proportion is higher than the land south of the ice sheet in Antarctica, North Pacific ocean water temperature higher than the South Pacific. Equatorial latitudes and variable wind sea salt content below the letter flies. On the Pacific vertical currents impact generated around the Antarctic continent. Polar surrounding density of sea water to sink, and then spread to the North Pacific in most of the underlying components. Deep cold water in the Western Pacific to compare distinct currents from the Antarctic to Japan near the beiliu. The mainstream of the deep sea to bring the cold water flows into the tributaries of the East and then in the hemispheres are flowing to the polar regions. Abyssal circulation from the adjacent ocean currents converge in surface water sinks. In the Pacific tropical convergence zone in South latitude 35o to 40o farther from the equator, between the sea, the greater the depth, the most important convergence zone in between latitude 60o to 55o. The world's largest drop waterfall Angel Falls, also known as the Churun ar falls. Located in Bolivar State in Venezuela in Guyana plateau, the Caroni River tributaries rise moron. Waterfalls 979 m, width 150 m at the end. Waterfall from the flat-topped plateau Auyan Tepui Telok, almost untouched cliffs. In 1935, the United States explorers Angel found this after the Angel Falls, the plane crashed near the waterfall, to commemorate him, Venezuela Government falls to Angel named the widest waterfall in the world falls in Argentina and Brazil border Iguacu and the Parana River upstream of the confluence point 23 km. The Horseshoe Falls, high 82 m, width 4 km, is North America's Niagara Falls width 4 times better than Africa's Victoria Falls also wider. Cliff edge has a lot of scrubby Rock Island, Iguacu from falling into the rapids or purging 275 unit, height 60-waterfall 82 m. November to March in the rainy season, waterfall maximum flow to 12750 cubic meters/second, the average annual flow of 1756 cubic meters/sec. Iguacu the wide river, from Paran�� plateau edge fall into a narrow gorge, the formation of this waterfall, people describe it as "the sea and purging in abyss". Wanton rose up from the bottom of the waterfall in the air rises nearly 150 meters of water mist, awe-inspiring. 1541 in Spain explorers Vaca first found the waterfall, now, Argentina and Brazil for the protection of the landscape and associated wildlife, near the waterfall established the Iguazu National Park World watershed area's largest river basin in the Amazon is the world's largest river, the Amazon River flows through the Amazon is the world's largest plain. Amazon is the world's largest, river flow in the area of the largest rivers. Its length is second only to the Nile River (about 6400 km), the second river in the world. It is estimated that all in the Earth's surface, flows of water about 20-25% in the Amazon. Mouth width up to 240 km, flood stage flow up to 18 million cubic metres per second, is 10 times the Mississippi River. Reducing water demand is so great, so that the distance from the shore of the sea within 160 km fades. Known more than a 1000 tributaries, of which 7 length more than 160 km/h. Amazon deposits of fertile silt to nourish the 65000 km2 of area, its watershed area of 705 000 sq km, almost any other in the world, the great river basin. The famous Amazon rainforest it grows in the Amazon basin. There is also the world's largest plain (area of 560 million square kilometers). Plain, flat terrain, most magnanimous and 150 m above sea level, therefore here the River meandering River, the large lake. Rainy, humid and continuous high temperature is its significant climatic characteristics. Here lies the world's rich and diverse biological resources, various biological up to millions of species. The world's largest coral reef in the Coral Sea is located in the Southwest Pacific Ocean, East of Australia and New Guinea, New Caledonia and New Hebrides Islands, Solomon Islands, South to the West. 2250 km long North-South, East and West is 2410 km, area 4791000 square kilometres. Latitude 20o to the North of the Harbour to the Coral Sea submarine plateau, Plateau to the North is the Coral Sea basin. South Solomon trench depth 7316 m, New Hebrides trench depth 7662 m. Coral Sea because there is a wide range of coral reefs and the great barrier reef, which is most famous. The great barrier reef along the northeast coast of Australia, long and has a total area of nearly 2 000 km 21 million square kilometers, is the world's largest coral reefs. The world's tallest sea water temperature (Red Sea region satellite pictures) in the Northeast and the Red Sea are located in Africa, the Arabian Peninsula, between the long and narrow shape from the Northwest to Southeast 1900 km length, maximum width 306 km, an area of 45 000 square kilometres. Red Sea North Fork into two small Bay, West to Suez, and runs through the Suez isthmus of Suez Canal and the Eastern Mediterranean; East to the Gulf of Aqaba. Press the seafloor spreading and plate tectonics theory that the Red Sea and Gulf of Aden is the embryonic form of the ocean. According to studies, the Red Sea bottom is the ocean of Silicon magnesium layers of rock, the Department is also at the bottom of the shaft is horizontal mid-ocean ridge broken long crack and rupture zone. The continent of Africa and the Arabian Peninsula began separation in 2 million years ago of the Miocene, currently at the rate of 1 cm to continue to expand. Is recorded in the Red Sea coast of the Strait, steep shore many coral reefs, small natural harbour. The average depth of the Red Sea, 558 m maximum depth 2514 m. Both sides of the Red Sea is something tropical desert jiazhi, perennial sultry air, dust, bright day. Precipitation, evaporation is very high, is the world's water temperature and salinity as one of the most high waters. The average surface temperature for August 27 to 32 degrees Celsius. The world's light sea (satellite photo) Baltic is the Atlantic Ocean into the North of the European continentThe sea. -Northeast-southwest direction. An area of 42 000 square kilometres. General depth of 40-100 meters, the deepest 470 m. General water salinity in parts per thousand of 34 to 37 per thousand. Baltic Sea surface salinity of the sea from the West 8 per thousand to millions of 11, down to the middle of 6 000 to 8 000 and 2 000 in the eastern part 2. World salinity minimum sea. The coastline of the Baltic Sea Island of many, many twists and turns, Harbour. 250 River injection. It is important for maritime transport paths in Northern Europe. North and East of the freezing period up to three to four months, generally do not fall in the South. An important Harbour having along the coast of St. Petersburg, Helsinki, Stockholm, Copenhagen, the world's largest freshwater lake (satellite photo) in Lake Superior, the Northwest and Great Lakes of North America's largest, is the world's largest freshwater lake in the world after the Caspian's second largest lake (Caspian is a salt water lake). The North-East of the Lake as Canada, to the South-West of the United States. Lake West 616 km north to South the widest branch 257 kilometres, Lake average elevation 180 meters, water area 82103 square kilometers with a maximum depth of 405 m. 1.2 million cubic kilometres of water storage capacity. There are nearly 200 rivers into the Lake, the Nipigon and the St. Louis River, to the maximum. The main island in the Lake have Royal Island (one of the United States National Park), Apostle Islands, Michipicoten Island and St. Ignace. More along the Lake, the scenic woodlands, sparsely populated. Lake Superior, lake water is clear, the Lakes more waves in winter and cool in summer. Seasonal fishing and hunting and tourism project for the main local entertainment. There are many mineral deposits. There are many natural harbors and ports. The main ports of Canada and the United States in Thunder Bay Tower Cornett, etc. Navigation throughout the year for a period of 8 months. The Lake of France in 1622 the explorers discovered that the name is taken from the French Lake, which means "Lake". The world's highest peak (view of Mt. Everest) Everest is surrounded by the Himalayas, the highest mountain in the world, altitude 8848.13 m. Located in the Kingdom of China's Tibet and Nepal Himalayan mountain range at the junction in the segment. Latitude 27 �� 59 ' 15.85 ", 86 �� 55 ' East longitude 39.51". Mountain rocks mainly by crystallization. Glaciers are large, about 600 more glacier, area of 1600 square kilometres. Is the role of modern glacier latitudes. Ice tongue general development in the upstream has big bingta, Everest region Valley glaciers of special form. Everest's North, East and South West has a large ice bucket, make up Everest become ice bucket up to 3000 m at the bottom of the pyramid-shaped peak Kok. In the northern slope of Mount Everest, 7450 metres above sea level to the junction of snow and ice and rock, ice and snow line capped top due to the steep cliffs, wind, ice and snow not accumulated strong and rock bare. Top often clouds seem to Everest as flag poles and waving flags from West to East, which is unique to the meteorological phenomenon of Everest, asserts qiyun. 1718, Qing flag as Zhu Mu lang maalin, 1855 United Kingdom man named Everest, 1952, the Government changed its name to Everest. 1953 may 29 United Kingdom two explorers first from Nepal in the southern part of the climb to success. May 25, 1960, the first Chinese mountaineering team from the north slope of the peak of success. 1975 may 27 Chinese mountaineering team succeeded in the top and surrounded by top up beacon, first get the Everest height of accurate data. In May of 1988, China, Japan and Nepal athletes from across the South and the north slope of the peak of Mt. Everest. 1989 national establishment of Everest nature reserve, an area of 3000 square kilometres. The world's highest life mountain world highest extinct volcano is the Aconcagua Hill, located on the territory of Argentina, altitude 6959 metres, the highest peak in the Western hemisphere. The mountain is located in the Northern Andes, Northwest peak in Argentina Mendoza Province, the West Wing extends to the North of Chile, Santiago. coastal lowland World's largest annual precipitation (satellite photo) in Hawaii is the Central Pacific, a group of volcanic islands one of the States of the United States. It consists of eight major islands and 124 island. Hawaii Pacific waters, transport and cultural center, known as the "crossroads of the Pacific", at the same time, it is also an important tourist destination. The capital city of Honolulu (Honolulu) located on Oahu. The largest of the Hawaiian Islands have spectacular volcanic eruptions. Hawaii is located slightly downwards the Tropic of cancer, due to the winds in the Pacific Ocean surface blowing, broad surface of a stable climate, its mild tropical climate is considered the most desirable in the world. Here between rainfall around the vastly. Kauai's Huai Lage Alai Mountains known as the world's most rainy areas, recorded 60 years the average annual rainfall of 11280 mm. Hawaii Island kawaihae average annual precipitation is only 220 mm. As the winds carrying moist air is often blown all over the island, so the air moisture easily unite to form an umbrella clouds along the Windward coast and mountains scattered vegetation, these areas than Leeward coast more luxuriant vegetation. World Wind's largest region in Antarctica is not only the coldest place in the world, which is also the world's largest wind power. Where an average of 8-there are more than 300 days of strong wind, the average annual wind speed 19.4 m/sec. 1972 Australia Mawson Station observed the maximum wind of 82 meters/sec. France Diehl d'Urville had observed wind speeds of up to 100 m/s of the hurricane, which is equivalent to 12-level 3 times, the Typhoon was by far the world's largest recorded. Antarctic storm so strong because of the Antarctic continent snow surface temperature is low, near the air quickly be shrink and cooling, variable-weight density increases. While the ice-covered Antarctica is like a piece of thin and thick around the Middle, "discus", formed a central plateau and the coastal area between the steep terrain. Variable weight of cold air from the interior height along the sloping sharply, to the coastal zone, a sharp decline due to the terrain, the air flow speed increase, decrease and formed a strong and extremely fast drop in wind. Have no seasons in Antarctica, only warm and cold season. Warm season from November to March; April-cold-season 10 month. Warm season, the average temperature in the coastal zone is rarely more than zero degrees Celsius and the average temperature in the inland areas to minus 20 degrees Celsius to minus 35; in winter, the coastal zone is of minus 20 to 30 degrees Celsius below zero, the inland areas to minus 40 to 70 degrees c below zero. In early 1967, Norway in measured below zero near the pole 94.5 degrees at low temperature. It is estimated that in East Antarctica may exist-95 to-100 �� c temperature. The world's largest wind district Cape of good hope Cape Town province is guide non-southwest of Cape Peninsula at the southern tip of the rocky headland. Cape of stormy, billowing, located in the warm Indian Ocean from Mozambique Agulhas current and cold from Antarctic waters of the Benguela current of Confluence. 1939 became a nature reserve here. The lowest point of the Earth's surface of the Earth's surface low is the dead sea. Where the average is below the surface of about 400 meters above sea level. The dead sea is a landlocked Lake, located between Israel and Jordan Jordan Valley. West Coast to East Coast Mountain Jews, as outside Jordan plateau. Jordan River from North injection. Dead Sea 80 km long, wide, 18 km, surface area of approximately 1020 sq km, the depth of 400 metres. The dead sea in Jordan-the dead sea, the lowest part of the trench is the East African Rift Valley in the northern part of the extension. This is a piece of crust, sandwiched between two parallel between the cliffs of geological faults. The dead sea is located in the desert, there is very little and irregular rainfall. Lisan annual rainfall is 65 mm. The climate is warm in winter, and hot summers. The average annual evaporation of the Lake to 1400 mm, often forming dense fog across the Lake. The lake water level there are seasonal variations in between 30 to 60 cm. Dead sea salt content is extremely high, and getting to the bottom. There is the deepest lake is fossilization (General sea salt content to 35 parts per thousand, and the dead sea salinity in parts per thousand 230 to 250 or so. Surface salinity of the water per litre than 227-275 g, deep water up to 327 grams. ���� Due to the high concentration of brine, swimmer is extremely easy. The Lake has no except bacterial flora and fauna. The tide from the Jordan River or other small river to fish immediately killed. Shore plants mainly adapted to saline soils of halophytes. The dead sea is a very large salt storage sites. Dead sea shore barren, fixed settlements, I see small piece of land and resorts. The world's longest mountain range (satellite image detail)-according to seven countries of the Andean mountain range of about 9000 km, almost three and a half times the Himalaya mountain range, this magnificent, gorgeous mountain, is the world's most spectacular natural landscape. In the case of the Andean mountain range Cordillera, the mountains extends from North America, South America, full-length 18000 km is the longest mountain system in the world. Andes has a lot more than 6000 meters above sea level, the mountain peaks covered with snow all the year round. Southern mountain ranges of the Aconcagua Hill is the highest peak of the Andean mountains, altitude 6959 metres, it is the world's highest extinct volcano. Yuri Nikolayevich subfamily volcano elevations 6723 m, is the world's highest volcano. Many volcanoes in South America, they are mainly distributed in the Andes, there are a total of 40 more active volcano. Andes generated a great great copper mine, here are the world's largest underground copper mine, 1200 metres below the surface in depth, a huge underground tunnels with a total length of more than 2000 km, mining automation is extremely high, the perfection of underground living facilities. The world's largest basin Congo basin is located in Central Africa, mostly in small part in the Democratic Republic of the Congo, Republic of the Congo. Area of 337 million square kilometers, is the world's largest basin. Basin in North-eastern part of the plateau, both for the East African Rift, gaps in the western part of the Congo River and estuarine areas. The Equatorial line through the Middle from the basin. Congo basin includes most of the Congo River basin, an average elevation of 400 metres, there is a large swamp. The surrounding plateau mountain altitudes of over 1000 meters. Many of the Congo River is a tributary to the river basins, sinks into the water system developed here. Basin climate is tropical rainforest climate with average annual temperature of 25-27 �� c, precipitation over 1500 to 2000 mm. Here is a piece of green tropical forest, there are many precious trees and tropical plants. Basin edge mineral rich, abundant water resources in the basin, so that people call Congo basin "in non-precious stones". The coastline is the longest national (satellite pictures you can see the winding coast) Australia Australia Federal abbreviations. Located in the South-West of Oceania, Pacific, West North-Pro, the South Indian Ocean. From Australia to the Mainland and the island of Tasmania. Australia is surrounded by the sea, its total length 36735 km of coastline. Area of 768 million kilometers. Around 1789 million population. Canberra. Australia inland terrain most flat, an average elevation of 300 m, the branch Kosciusko mountain peak, 2228 m above sea level. 35% of the whole area of desert and semi-desert. Rivers for intermittent flow River. Major subordinate tropical, subtropical climate. The deepest depths of the oceans (trench three-dimensional image at the bottom of the computer) Mariana Trench is located in the Western North Pacific to the East, the Mariana Islands as an ocean bottom arc depression, extension 2550 km, average width 69 km/h. Main trench bottom of steep valleys are smaller. 1957 USSR research vessel measured 10990 m depth, and a new record 11034 m. 1960 United States Navy used France "," Trieste "exploration of the sea", boats, creating an infiltrated trench 10911 m records. Generally agreed that the ocean plate and continental plate tectonic plates collide with each other, because the ocean plate rock density, where low, dive into the continental plate, gradually dissolves after entering the mantle and perish. In the event of a collision where formation trench, near the Mainland side often form the island arc and Coast Mountain range. These places are regional geological activities strongly, manifested as volcanoes and earthquakes. The world's longest river (river scenery) throughout the African continent, North-East of the Nile River, flowing through the Burundi, Rwanda, Tanzania, Uganda, Ethiopia, Sudan, Egypt, across the world's largest Sahara desert, and finally into the Eastern Mediterranean. Basin area of about 335 million square kilometers, occupying an area of the continent, one of the nine 6650 km in length, the annual average flow rate3100 cubic meters per second, is the longest river in the world. Nile basin is divided into seven regions: East African lake plateau, mountains rivers district, the White Nile, Blue Nile region, Atbara River div., Khartoum North Nile district and the Nile Delta. The source is in the East African Lakes Burundi Kagera River. The Hebei stream, Tanzania, Rwanda and Uganda, were injected into Africa's largest lake, Lake Victoria. Nile River on the origin of the Lake, known as Victoria Nile. The River through kioga Lake and flows out of Lake Albert, Albert Nile after that, the river and the Sobat river converge, known as the White Nile. One of the Central Highlands of Ethiopia originate from Blue Nile and the White Nile in Sudan Kashimu convergence, and then in dammeyer North accepted last major tributary of the Atbara River, the Nile River. The Nile to the northwest around an S-shaped, after three falls after injection Nasser reservoir. River water out of the reservoir by Egypt's capital into the Nile Delta, divided into several branches, at the eastern end of the last injection of Eastern Mediterranean. There are regular flooding of the Nile River, in northern Sudan may usually begins rising water, August maximum water level, water level has dropped in the future, 1 to 5-month low water level. Although flood is a regular occurrence, but the time of the water and the flood tide varies greatly. This phenomenon is due to the Blue Nile and the Atbara River, the two rivers of water from the Ethiopian Highlands seasonal rainfall. The Nile River is more than 80% of the Ethiopian Highlands, the remaining water from the East African Highland Lakes. The flood comes, flooding, flood back on both sides of the farm, and be left with a thick layer of up river silt, forming fertile soil. Siwuqian years ago, Egypt people will know how to control the flood of laws and use of cross-fertile land. For a long time, the Nile Valley has been a succession of cotton, rice flower fragrance. In the Sahara desert and the Arab desert left holding, meandering River is like a green corridor, filled with infinite vitality. The world's largest delta (satellite pictures, water cloudy), the world's largest delta of the Ganges Delta, which is width 320 km, start the dots in the sea there are 500 km, an area of 7 million square kilometers, in Bangladesh and India. Ganges River diversion aspect, there are 8 main watercourses, in the Bay of Bengal Department and Brahmaputra join together to form a broad Ganges Delta. In the Delta, the Ganges is divided into many branches of a fork, a quite characteristic of the Delta. Here the fertile soil, agriculture, is the South Asian subcontinent rice, wheat, corn, jute, sugar cane and other important planting crops. There are a large part of the estuary of the mangroves and wetlands. Here the terrain and level, only 10 meters above sea level. River, the shoreline is a funnel-shaped, storm surge is not easy to disperse and assembled in the Ganga near stark tide, omnipresent in the Ganges Delta plain, it is easy to cause extensive flood. The world's largest inland lake (satellite pictures of the Caspian Sea, white lines in the figure as at the intersection of Azerbaijan's capital Baku. The Volga in the upper-left corner of the Lake. ) Of the Caspian Sea is the world's largest inland lake, located in the vast flat Central Western and South-Eastern part of Europe, West Caucasus Mountains. The entire area of North-South elongated, 1200 km long, average width 320 km to the East. 386400 square kilometers, five than North American freshwater lakes together would produce more than doubled. Long Lake waterfront in 7000 km. There are over 130 River into the Caspian Sea, the Volga, Ural River and Terek River from the North, 3 river water accounting for 88% of water injection. Caspian Sea in the island up to 50, but most are very small. Sea basin in General for North, Central, and South three parts. The most simple of the deposition of the North downs, average depth of plain 4 to 6 meters. Middle is irregular basin, West slope of the steep, gentle, deep East approximately 170-788 m. South of the depression, the deepest reaching 1024 m, average depth of whole Caspian 184 m, Lake volume 7.6 million cubic kilometres. Sea, evaporation up to 1000 mm. Hundreds of years, the Caspian Sea area and depth has changed. The coastal States of the Caspian Sea to provide excellent water conditions, there are many harbours along the coast, some port and railway line, the train can directly open to boat ferry to the Mainland.