The practice probably cannot be continued indefinitely, however, because of increasing population pressure. The largest quantities of commercial tropical products originate in plantations, where skilled management is combined with sufficient capital to provide mechanized equipment.
Primary power sources are many and varied including solar, wind, hydroenergy and geothermal, which may be used to power stationery equipment (wind, hydroenergy), to provide heating or cooling (solar, geothermal) or to generate electricity (wind, hydroenergy) to service a multiplicity of on-farm activities (see also, Energy Sources: Renewable and Non Renewable).

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The practice probably cannot be continued indefinitely, however, because of increasing population pressure. The largest quantities of commercial tropical products originate in plantations, where skilled management is combined with sufficient capital to provide mechanized equipment.
Primary power sources are many and varied including solar, wind, hydroenergy and geothermal, which may be used to power stationery equipment (wind, hydroenergy), to provide heating or cooling (solar, geothermal) or to generate electricity (wind, hydroenergy) to service a multiplicity of on-farm activities (see also, Energy Sources: Renewable and Non Renewable).

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