this ended‚ the Earth cooled and its surface solidified to a crust - the first solid rocks. There were no continents as yet‚ just a global ocean peppered with small islands. Erosion‚ sedimentation and volcanic activity - possibly assisted by more meteor impacts - eventually created small proto-continents which grew until they reached roughly their current size 2.5 billion years ago. The continents have since repeatedly collided and been torn apart‚ so maps of Earth in the distant past are quite different
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most westerners have a negative view on Africa‚ but a completely misunderstood point of view on Africa. Africa is a beautiful continent with fascinating cultures and amazing people‚ yet most of the western world fails to see the beauty that is Africa. Based on Ann Jones’s novel‚ most westerners have a misconception about Africa‚ and view it as unhealthy‚ a dark continent‚ unimportant to history‚ and unresourceful. Most westerners believe that all of africa is aid ridden and disease stricken‚ but
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continental drift? Wegener noticed that the continents seemed to fit together‚ not at the continuously changing shoreline‚ but at the edge to their continental shelves. He derived this hypothesis from the observation that the continents in the southern hemisphere exhibit an identical pattern of rock and fossils known as the "Goodwin sequence". The most logical explanation was that the continents themselves were once parts of a much larger "super-continent" which was named Pangaea. A second idea
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misrepresented as a continent of victims of poverty‚violence and ridden with HIV/AIDS.Ask anyone what they think of Africa and you may received a response related to poverty‚AIDS‚hunger‚tribalism‚or animals.Most likely the view is that Africa is not continent at all but one large country where everyone speaks the same language‚eat same food‚wears same dress and create he same art work.Simply a homogenous place. (Selome Araya‚2007).m It must be pointed out that this same continent contains most of the
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African continent both in the pre colonial and the colonial era. The scourges of slave trade‚ inter-tribal warfare and more importantly the imposition of colonial rule on the people of Africa made peace and stability on the continent quite elusive. Obviously‚ one would foresee emancipation and independence as a sure way to relative peace and stability. Unfortunately‚ the post-colonial conflict situation on the continent has proven more disturbing than ever in the history of the continent. The formation
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like a puzzle and the continents look like the pieces that would fit together to complete the puzzle. In 1912‚ Alfred Wegener‚ a German scientist and an adventurer‚ came up with a theory that the continents had once been part of a "supercontinent". Wegener proposed that‚ over 200 million years‚ what he called Pangea had separated and became individual pieces. Pangea means "all lands" in Greek‚ and that is what Pangea was‚ a very large landmass when all of the continents were connected. When
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The children learn the names of the continents and the oceans. The elementary program in geography begins with a study of the basic land and water forms‚ presentations of globes and maps‚ and a basic overview of the seven continents from both the physical and cultural perspectives. Lessons are also given on the formation of the universe‚ stars‚ the solar system and our earth. These
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This theory was originally called continental drift. The theory of “Pangea” that is the continents were connected was Alfred Wegener. The age of the sea floor is one good piece of evidence that very adequately supports the theory of plate tectonics. The Ocean floor is around 160 million years old while the crust of the earth is around 3.8 billion years old. Another example is that the shapes of many continents are such that they look like they are separated pieces of a jig-saw puzzle. The fact that
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Africa Rapidly increasing the population‚ Africa is the second largest continent in the world. Therefore‚ this continent lay on all four hemispheres and contains over a quarter of the independent countries across the world. Being such a large continent‚ Africa is categorized into two different sections the North African Middle East half‚ made up of the northern countries‚ and what is known as Sub-Saharan Africa which consists of the southernmost countries. Utilizing approximately one-fifth of the
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second largest continent spread over an area of 11‚668‚545 sq. miles‚ which makes up for 6% of the Earth’s total surface area and 20.4% of the total land area on the surface of the Earth. Africa is second only to Asia with more than 900 million people inhabiting the continent which is approximately 14% of the world’s total population. The continent is bound by Mediterranean Sea to the north‚ the Suez Canal and Red Sea in the northeast‚ which separate it from the neighboring continent of Asia. Indian
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