Natural Resources: "Look to the Land" 1954 Encyclopaedia Britannica Films

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• published: 11 Jul 2017
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Agriculture: Farming, Ranching playlist: https://www.youtube.com/playlist?list=PL897E774CDB19F283 Forestry, Logging, Wood, Lumber, Sawmills, Lumberjacks... playlist: https://www.youtube.com/playlist?list=PL_hX5wLdhf_ItHl6u0oUCHbUyb7KlUpup Biosphere - Plants & Animals playlist: https://www.youtube.com/playlist?list=PL1FCE267E4A977761 more at http://quickfound.net "Presents the viewpoint that America has often unwisely used its land and forest resources, that all people are dependent upon the land and must, therefore, be directly concerned with problems of conservation. Documents the misuse of these resources and the resulting problems, as the Wanderer (narrator) visits a New England farm auction, the Connecticut Valley, an Alabama cotton farmer, a Dakota farmer, a Wyoming cattleman, and a timberland region. Illustrates the interdependence of all the people in a river basin. Includes folk songs as background music." Full-length version of a previously uploaded film fragment, with improved video & sound. Originally a public domain film from the Library of Congress Prelinger Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & mild video noise reduction applied. The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original). http://en.wikipedia.org/wiki/Natural_resource Wikipedia license: http://creativecommons.org/licenses/by-sa/3.0/ Natural resources occur naturally within environments that exist relatively undisturbed by mankind, in a natural form. A natural resource is often characterized by amounts of biodiversity and geodiversity existent in various ecosystems. Natural resources are derived from the environment. Some of them are essential for our survival while most are used for satisfying our wants. Natural resources may be further classified in different ways. Natural resources are materials and components (something that can be used) that can be found within the environment. Every man-made product is composed of natural resources (at its fundamental level). A natural resource may exist as a separate entity such as fresh water, and air, as well as a living organism such as a fish, or it may exist in an alternate form which must be processed to obtain the resource such as metal ores, oil, and most forms of energy. There is much debate worldwide over natural resource allocations, this is partly due to increasing scarcity (depletion of resources) but also because the exportation of natural resources is the basis for many economies (particularly for developed nations such as Australia). Some natural resources such as sunlight and air can be found everywhere, and are known as ubiquitous resources. However, most resources only occur in small sporadic areas, and are referred to as localized resources. There are very few resources that are considered inexhaustible (will not run out in foreseeable future) -- these are solar radiation, geothermal energy, and air (though access to clean air may not be). The vast majority of resources are exhaustible, which means they have a finite quantity, and can be depleted if managed improperly... Classification There are various methods of categorizing natural resources, these include source of origin, stage of development, and by their renewability. These classifications are described below. On the basis of origin, resources may be divided into: - Biotic -- Biotic resources are obtained from the biosphere (living and organic material), such as forests and animals, and the materials that can be obtained from them. Fossil fuels such as coal and petroleum are also included in this category because they are formed from decayed organic matter. - Abiotic -- Abiotic resources are those that come from non-living, non-organic material. Examples of abiotic resources include land, fresh water, air and heavy metals including ores such as gold, iron, copper, silver, etc...