In 1952, Egypt became an independent government state and by the 1960s and 1970s developed more rapidly than the rest of the Africa. This date refers to the 23rd of July Revolution where Egypt was granted independence from it's dominion status under the British. The new Egyptian government then established a nationalist and anti-imperialist governance.
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A vertebrate is an animal or species distinguished by its possession of a backbone or spinal column. Vertebrates can be insects, fish, mammals, birds, reptiles, and also amphibians.
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Weather is a complex phenomena. in order to solve engineering problems such as the prediction of weather, we utilize degrees of freedom (DoF)... weather is one of the many elements that need millions of DoF and still cannot accurately predict it. mainly it's a vector analysis much akin to finite element analysis where each micro degree of freedom or say molecule of air is represented as one point interconnected in a web of points and each point's properties are altered relatively (similar principles how autonomous mini drones coordinate synchoronously) to each other.
many factors are considered: pressure, temperature and density of the air for sure. friction factors. drag factors. rotation of the earth. and that's the natural phenomena. include the heat given off the land, the radiation from the sun, airplanes, people, etc... its highly complicated. having done a weather station project, it's fair to say that there isn't a simple answer to your simple question. we measured wind direction, wind current, temp and humidity, visibility, pressure, etc... and we couls measure these things, but can't really say why say the wind went east or west... except tell you that its because of millions of degrees of freedom interacting with each other simultaneously and some things like weather are just like that.
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upper mantle and lower mantle
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