worldwide is used as the binder in asphalt for roads. it is also used in other paved areas such as airport runways, car parks and footways. typically, the production of asphalt involves mixing sand, gravel and crushed rock with bitumen which acts as the binding agent. other materials, such as polymers...
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organs in the body handling a lot of metabolic activities including cholesterol metabolism. although the term cholesterol might invoke a fear within a health-conscious person, cholesterols aren't all bad and, in fact, have a purpose to fulfil. cholesterols are synthesized in our body by the liver and...
the formof logs, pellets or wood chips. the full range of biomass fuels also includes animal, food, industrial, and municipal waste. biomass can be transformed into various forms of energy, such as methane gas, ethanol and bio-diesel. burning biomass releases most of the energy as heat that can be...