Some of the materials that form the surface of the earth may bring been by rivers or vol back endoes only yesterday. However, the earth was formed just about four and a half billion years ago.
The archives of man on earth dates back only 1 million years, in stark contrast to the age of the planet. During this forgetful period of time, human beings have developed a long variety of races, languages and cultures.
Some of the variety of our species development can for sure be attributed to the variety which exists in nature - we have adapted to living in both tropical and polar climates and can be found flourishing in natural conditions variable greatly in temperature, landscape and fertility.
Natural Resources
Our primary subscribe to is our own life swear and fundamental to the resource social system of the earth is the energy of the sun. It is the power plant that drives all other systems.
The earths natural resources include mineral deposits, basiss and water and also the plants that support animal life (which supports itself in part by preying species upon species). The dispersal of these natural resources over the earths surface is far from even. The whereabouts of mineral deposits front on events in the remote geological past.
Patches of fertile foulness may depend on events more re centime, such as the flow of rivers or movement of ice.
Approximately twenty per cent of the earths surface is covered by or frozen soil, making agricultural use impossible. Another twenty per cent is higher(prenominal) ground where conditions are too harsh for the cultivation of crops. A further twenty per cent is and or desert and amid five and ten per cent of what remains has no soil due to the action of ice or floods. This leaves only thirty to thirty-five per cent of the land surface where food yield is possible.
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Continental Drift
The migration of the continents is one of the most important features of the theory of the...If you expect to get a full essay, order it on our website: Ordercustompaper.com
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