geothermal fluids, which may contain low levels of toxic materials. Although geothermal sites are capable of providing heat for many decades, eventually specific locations may cool down. Biomass energy Biomass is any material that comes from plants or microorganisms that were recently living. Trees, branches, scraps of bark, and recycled paper are common sources of biomass energy. Manure, garbage, and crops such as corn, soy, and sugar cane can also be used as biomass feedstocks. We get energy from biomass by burning it. Wood chips, manure, and garbage are dried out and compressed into squares called "briquettes." Biomass can also be converted into biofuel. A major advantage of biomass is that it can be stored and used when it is needed. Negative aspects of biomass energy Growing crops for biofuels requires large amounts of land and pesticides. Some pesticides could pollute the air and water. Biomass energy can also be a non renewable energy source.
vehicles that use alternative fuels used in standard or modified internal combustion engines such as natural gas vehicles, neat ethanol vehicles, flexible-fuel vehicles, biodiesel-powered vehicles, and hydrogen vehicles. vehicles with advanced propulsion systems that reduce or substitute petroleum use such as battery electric vehicles, plug-in hybrid electric vehicles, hybrid electric vehicles, and hydrogen fuel cell vehicles. Alternatives to using oil in industry Biological feedstocks do exist for industrial uses such as Bioplastic production. Alternatives to burning petroleum for electricity Main articles: Alternative energy, Nuclear power, and Renewable energy In oil producing countries with little refinery capacity, oil is sometimes burned to produce electricity. Renewable energy technologies such as solar power, wind power, micro hydro, biomass and biofuels are used, but the primary alternatives remain large scale hydroelectricity, nuclear and coal-fired generation.
content will increase. Sunflower silage is considered adequate for steers and dry cows or low milk producers, but not for high-producing milk cows. Industrial Like most oilseeds, sunflower has potential for many industrial products, but has not been used much for non-food, non-feed purposes in the U.S. Because sunflower oil is used for food purposes, its price is higher than is currently competitive with petroleum feedstocks for oil-derived products. Sunflower hulls have been marketed for specialty purposes such as poultry litter, fireplace logs and other high-fiber products, but these markets are limited. Sunflower oil has been researched as a potential diesel fuel substitute, since sunflower oil has an energy content equivalent to 93 percent of no. 2 U.S. diesel fuel. Marketing and economics Sunflower profitability depends greatly on price levels. In 1991, sunflower prices were as
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