Asia

Asia is the continent most of the world's largest. The area accounts for about 1 / 3 whole ground. Here is the highest point (Mount Everest) and lowest (the Dead Sea) the surface of the continent. The largest and deepest lake world (the Caspian and Baikal), also located in Asia. Asia has 7 of the 12 largest rivers on Earth.

Average mountain plateau and up 3 / 4 area of the continent (known as Asia is the continent seems not quite right) A huge mountain belts run through from west to east, from Asia to lobby the Malay Islands, Monday from Pamia belt and Tian Shan to Chukotka. The region's largest low - located in Western Siberia and the western part of Turan Asia. Other regions (Mesopotamia, India - Ganges and China) deserve attention not because of its size, it also includes a role in the development history of civilized mankind .Asia divided into six regions, distinguished by natural conditions and features historical development of East Asia (China, Mongolia, Korea), Southeast Asia (Indochina), Asia (India and neighboring countries). Southwest Asia (Near East, most countries), the Asian part of Russia (Siberia) and Central Asia (Central Asian republics of the former Soviet Union) .

East Asia is part of the world population, live here more than 60% of the population of the planet. Password highest population in the south and east of the continent. In China and India focused than 1 / 3 of the population of Earth. Several thousand years BC the first civilizations were born in the Tigris and Euphrates valleys, India, the Yellow River, on the mountains of Asia corridor.Here was born the world's faiths: Buddhism, Christianity, Islam. Asia has been subject to repeated invasion of Europe (Greek, Roman, Crusades, colonialism in the 16th century -17) gradually from the heart of the continent has grown and the power to destroy the movement (Turcmen - Seldjuc, Mongol, Timurid, Osman. etc ...) to change the progress of history.

On the map of Asia is now close to 50 independent countries. The countries that belong to political and social systems different levels of economic development vary, with different ways diplomatic.

-19 18th century, Asia completely left behind in economic development and social comparison with Western countries. But the 20th century, this continent has proved its vitality. Japan and South Korea, Singapore and Taiwan, and China in recent years has developed a speed surge. Mog continental reserves of myths about natural resources.

Africa

Africa is the second largest continent, with the islands, Africa accounts for more than 1 / 5 the area of Earth. Most of the continent's surface is the high plateau is much different. The northern continent is the Sahara - the world's largest desert, rather than a star system membranes. South of the equator is the Kalahari and Namib deserts. Between the Sahara Desert and the south is the vast steppe grasslands with large and giant baobab trees, herds of hoofed animals, elephants, rhinos, giraffes,the numerously incalculable pantherine and the lion- all is ones plenty special of the Africa in fantasy the our plurality. In the area continent's equator, In cauldron Congo and a number of Dampest jungle another regions develop.

Africa has abundant natural resources the most. Focus on continental reserve 70% of the world's diamonds, gold 55%, shosphor mines, copper ore, nickel and iron-largest. North Africa is a giant lake of oil.

Many researchers believe that Africa 5 -7 million years ago is the cradle of human society. Nile Basin - home to the Egyptian empire was one of ancient civilization and the greatest on earth. In terms of culture and ethnicity, compared with other parts of the world, Africa is the most complex systems. There may diverge more than 3,000 ethnic groups and more than 1,000 languages. The majority black population in the southern Sahara and the continent in general. On the northern desert and the desert Arabs and Berbers live. In addition, the influence of Arabic in East Africa is also very strong.

History of Africa last five centuries have passed under the colonial regime. The years 50-70 of the 20th century, the colonies became independent countries. Except a few, all countries have inherited the economic backwardness of the society. The level of economic development, Africa is just over Antarctica. Accelerated principal of the continent is still largely rural population, despite the growth of cities in the last decade. Agriculture sector is almost unique in the vast majority of countries .Every year, hunger, disease took the lives of hundreds of thousands of Africans. Ethnic conflicts and beliefs is one of the main scourge of Africa today. Generally speaking ethnic wars are caused because the border after the European colonial done not consider local factors.

Ha Long Bay

Geological history geomorphology of Ha Long Bay was recognized scientists to undergo at least 500 million years old geographical circumstances are very different, many times to create painting, marine degradation; lost sink, the sea advances. Ha Long Bay but retains the mark of the paint, place great troughs of the earth, is composed of local savings, boasts ancient sites . Ha Long Bay area was a deep sea in the century Odovic - Silua (about 400-500 million years ago) , a shallow sea in the Carbon century - Perm (about 200-300 million years ago), sea shore in the late Paleogene Neogene (about 20-26 million years ago) and spent some time in the Age of Human Miserere ( about 2 million years ago). In the century Triassic (190-240 million years ago) when the earth in general, in particular the European hot dry climate, the region is Halong Bay with the marshes wet forests minnows, giant ferns accumulate many generations .

Ha Long Bay with Karst evolution a full year spent 20 million through a combination of factors such as the time between the limestone is thick, hot and humid climate and tectonic processes increase slowly overall. Ha Long Bay contains many types of Karst topography bohemian style, Linh Phong. Karst topography bohemian style: Includes a cluster of limestone are often contiguous with pyramidal peak around 100 meters, 200 meters the highest. Karst topography Linh Phong model: characterized by peaks separated forming steep cliffs tower. Most of the tower height from 50 - 100m .Ratio between the height and width of about 6m. Karst Plain is a large basin development in the Karst region have relatively flat surfaces. Karst Plain is formed by different methods like: The tectonic related slump pits local pride; by the drop ceiling of the underground river valleys, underground caves, the existence of rocks as being insoluble erosion strong erosion between the Karst topography that surrounded the city higher ... Karst Field Halong frequently flooded.

As the cave system diversity on the Bay, is divided into three groups: Group 1, are relics of ancient underground cave, Sung Sot cave is typical, Tam Cung dynamic, long term, Thien Cung cave Top Wood, Dragon, etc. .. Group 2, a typical Karst caves are the Virgin, Bo Nau, Tien Ong, Hang Drum, etc.. Group 3, a system of marine palate, typically as three other caves in this cluster Ba Ham lake, cave Luon, Ba Hang ...

Ha Long Bay Karst global significance and nature of scientific basis for geomorphology. Geological environment is the foundation of values generated by the Ha Long Bay as biodiversity, archaeological cultures and other human values.

Dead Sea - the navel of the earth

Dead Sea lie between Israel border, Palestine where there is geographic location is inland undermost,. Dead Sea hass 400 m2 mediterranean possession acreage lesser acreage. It was called "the navel of the earth."

Length of the Dead Sea towards the north - south is 80 km, 5-16 km wide, has an area of 1049 km2, average depth of 301 km. From the geological structure, the Dead Sea is located in the cracks of the continent of Africa (Eastern Africa), long reach to the north, also known as the "conduit" of the Dead Sea. 70 million years ago, water from the cracks and become lakes. 250 years ago, the Dead Sea is much wider than today. At that time, the length of the north - south is 300 km, almost 4-5 times higher than today . Due to the location of the Dead Sea is located in the desert, hot, dry, average annual rainfall is 50-60 mm, but the water evaporates back more than 1,000 mm, the area of its increasingly narrow . He even predicted that the XXI century, the Dead Sea will disappear from the world map.

Dead Sea is actually an inland lake, the water can only flow into the drain that can not be. Water supply is based mainly on rivers flowing from north Jordan. Each year, water flow from the Jordan River flows into the lake average 5 billion m3, accounting for 2 / 3 the total amount of water flowing into the "lake". Annual rainfall in this region is not stable, the water should be supplemented erratic water levels in the "Ho" is not stable, ranging 60-70 cm .In recent years, the Jordan River's water is used so much on irrigation water in the lake dropping, the area was narrow. The Dead Sea is a lake, but due to large area, countries should be called blue sea .According to data exploration in the Dead Sea salt has about 110 billion tons, enough for 40 billion users in 2000 year. This is natural salt warehouse extremely large. Due to the high salt content in water should be out some bacteria, the organisms do not survive in the Dead Sea. Fish downstream river flows into the Dead Sea has also been "salted" died here. Both an area several hundred meters along the coast has not made any trees, birds are not sharp to the array .

Due to high levels of salt in the sea, the thrust of the great. What if people do not stumble fell drowning. Whereby a group of prisoners had escaped. Century I, a marshal's staff leads a cluster of Roman prisoners to the Dead Sea to execution. Roman soldiers throwing prisoners into the sea carrying chains. But they still floating on the water floating. There are people with waves ashore. Roman soldiers terrified before the strange phenomenon that crowd and that prisoners should be god bless all ordered released. Cloud prisoners escaped but did not understand it because what reason. A few years later we discovered this wonderful thing .

But in the Dead Sea no living creature that was but here is the famous tourist destination. Tourists come here to be comfortable playing pool. The interesting thing is whether or not swim, when to place, as well as a time you're floating on the sea waves. But tourists can not swim in this race because of the large thrust. Water at fans, hard riding in the limbs was difficult to swim forward. Most travelers to the body is floating to the surface and see books. Now back to shore, the sun, sparkling full body salt and stick it together on the skin.

EARTHQUAKE

As an earthquake or a seismic shake or movement of the ground shake. Earthquakes typically result from the movement of the milling or fault on the part of the Earth's crust or the planets composed mainly of solid as rock. But slowly, the ground is always moving and an earthquake occurs when stresses higher than the physical stamina of the earth .Most earthquakes occur events in the boundaries of tectonic plates are part of the earth's lithosphere . The earthquake occurred at the boundary is called the earthquake through the disk and the earthquake happened in one disc (more rarely) called the earthquake in the disk .Earthquakes occur every day on earth, but most are not noticeable and causes no damage. Large earthquake can cause severe damage and death in many ways. Earthquakes can cause landslides, soil cracks, tsunami, tidal water fake, brittle, and fire. However, in most earthquakes, the movement of the earth cause the most damage. In many cases, there are many more small earthquakes occurred before or after the main earthquake , the matches are called aftershocks. The capacity of the earthquake was stretched in a large area, and in the major earthquake can experience all the world. Scientists often can determine the point at which the seismic wave is started. This point is called the standard shocks. Projection of this point the surface is called the epicenter.

The Mariana trench

Mariana Trench, also called field or pool Mariana Mariana, is the deepest oceanic trenches know, and the deepest point of it is deep in the crust. It is located on the bottom of the northwest Pacific, east of the Mariana Islands. Deepest point with coordinates 11 ° 21 'North and 142 ° 12' EastMariana Trench extends to near Japan. This trench is the boundary where two tectonic plates meet, is sunk down in that region Pacific Plate sunk below the Philippine Plate. Trench length 2550 km (1580 miles) but the average width of only about 69 km (43 miles). Bottom of the pits below sea level a greater distance when compared with Mount Everest above sea level .Maximum depth of this trench is 10,971 m (35,994 ft) below sea level according to the most recent measurements. When calculating the latitude and the bulge in the equatorial region of the Earth, it lies at a distance of 6366.4 km from the center of the Earth. Arctic Ocean, is only about 4 to 4.5 km depth, but from the bottom of it then again only at a distance of approximately 6352.8 km from the Earth's center, ie near the Earth's center than the deepest point 13.6 km of the Mariana Trench.

TRUONG SON MOUNTAIN

1. SPECIFIC : Truong Son Truong Son is divided into North and South Truong Son, separated by Hai Van Pass and Bach Ma mountain.
   
   Truong Son strip extending from the upper river on land bordering Laos until Nghe An extreme south central part. It includes all of the smaller mountains in the North Central and the massif, southern central highlands, divided into large bow that the convex surface facing the South China Sea.
2. North Truong Son : The children of the Truong Son mountain range north are: sequence Pu / Lady Lai Leng, John Monitor sequence, the sequence of Bach Ma.
   
   From Vinh (Nghe An) to Da Nang in width from just plain 40 km to 60 km, the narrowest place in Dong Hoi (Quang Binh), only about 37 km. The average altitude of the North Truong Son range of about 2,000 m, sometimes heights over 2,500 m. The highest peak is Phu / Pu spent Leng Lai (Vietnam-Laos border, Nghe An), 2711 m, Phu / Pu Ma (Nghe An), 2194 m, Phu / Black Pu Din (Nghe An), 1540 m, Rao Grass (Vietnam-Laos border, Ha Tinh province) in 2235 m, Dong He (Thua Thien-Hue) 1774 m, White Horse (boundary Thua Thien - Hue and Da Nang) 1444 m.
   
   Massif Ke Bang in Quang Binh province to 1178 m high, Phong Nha has been recognized as World Cultural Heritage.
   
   North Truong Son range runs from the upper Ca river to Quang Nam, the Northwest - Southeast, as Truong Son range to the south coast as closely, there are many mountains to the sea as straight horizontal stab Hengshan County (between Ha Tinh and Quang Binh), and Bach Ma (between Thua Thien - Hue and Quang Nam). Steep eastern slopes, gentle slopes to the west.
3. South Truong Son :Part from high terrain or on a volume increase Kontum Kontum or Highlands.
   
   The main mountain range and volume of the massif Nam Truong Son Ngoc Linh Mountain An Khe, Chu Dju, Tay Khanh Hoa, Chu Yang Sin. Slopes of the mountains and down steep mountain blocks down the coastal plain from Nha Trang to Quang Nam.
   
   Due to the complex terrain, so a temperature, rainfall, hydrology, soil and vegetation cover in South Truong Son varied. North Truong Son range runs along the South West also
   
   Nam Truong Son mountain range and the system blocks the mountain, high mountain ridges covered eastern Highlands, running from nose to block Dinh Ngoc Linh Mountain.
   
   The highest mountain in the Truong Son Mountains South include: Ngoc Linh (2598 m) highest mountain Truong Son and ten other than 1200 m high on the massif of the Ngoc Linh, Ngoc Krinh (2025 m), Kon Ka Kinh (1761 m), Vong Phu (2051 m), Chu Yang Sin (2405 m), Bon Non (1692 m), Chu Braian (1865 m), M'non Lanlen (1623 m), M'non Pantar (1644 m), and many other peaks.