applications‚ such as when used as mortar; this CO2 is later re-adsorbed as the mortar goes off. Additionally‚ if the heat supplied to form the lime (3.75 MJ/kg in an efficient kiln) is obtained by burning fossil fuel it will release CO2: in the case of coal fuel 295 kg/t; in the case of natural gas fuel 206 kg/t. The electric power consumption of an efficient plant is around 20 kWh per tonne of lime. This additional input is the equivalent of around 20 kg CO2 per ton if the electricity is coal-generated
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Identify three renewable energy sources and assess their potential to replace fossil fuel The rapid depletion of fossil fuels has given serious warning that the era of using conventional energy is coming to an end. Due to the energy shortage‚ a need to find replacement of fossil fuels has appeared. Moreover‚ problems such as various pollution and serious climate change have occurred‚ which makes renewable and less pollution energy source alternative choices. Therefore‚ three options can be suggested
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Ever since the 1400s‚ the production of sugar has influenced the world economy‚ governments and social structure. Sugar put people in motion throughout the world for the purpose of building wealth‚ with unattended consequences of building global connections that still remain today and facilitating cultural diffusion.The reason people wanted sugar was that to them it was known as "white gold". It was referred as this because it was the first product in human history that satisfied the desire of sweetness
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ago and was on earth at the sametime as homo habilis and homo erectus. Most of the australopithecus fossils that have been discovered have been found in eastern africa and have been dated between 4.5 million and 1.1 million years old. There has also been evidence that the australopithecus "man" lived in australia where fossils have also been found. The first discovery of an australopithecus fossil was made in 1924. The body of the australopithecus is smaller than humans‚ but biffer than chimpanzees
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What is Alternative Fuels Alternative Fuels come from resources other than petroleum. Alternative fuel uses sources like corn‚ vegetable oils‚ animal fats‚ natural gas‚ propane and hydrogen. Various Alternative Fuels are produced domestically‚ thus reducing our dependence on imported oils and some are derived from renewable sources. Alternative fuel produces less pollution than normal gasoline or diesel (U.S. Department of Energy‚ n.d. ). Alternative fuel is produce for a variety of vehicles
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A Fuel Alternative. The Search for an Alternative Fuel to Save the Environment… And Our Pockets. Long gone are the days were one could drive into a petrol station and fuel up your highly inefficient gas guzzling vehicle without a care for the environment and sustainability. The recent spike in the price at the bowser‚ damage to the environment and diminishing reserves has made it clear that a new‚ sustainable and clean fuel must be created in order for our vehicles and economy to operate.
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Biodiesel Fuel The biggest problem the United States faces today when we talk about becoming energy independent is replacing the gas we use to power our vehicles. When we talk about replacing gasoline as the fuel we use to power our vehicles‚ biomass‚ hydrogen‚ and fuel cells are the three most talked about alternatives. Biomass‚ which is organic material made from plants and animals‚ contains stored energy from the sun. Biomass in the form of bio fuels can be used to make the same products
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How Do Veteran’s Affect Us? There is always that common question we often share with others‚ among these questions are: “What’s the purpose of celebrating Veteran’s Day?” The answer can easily be answered that the holiday was created to celebrate the soldiers who serve to protect this country‚ but many do not know why are they important to us. They uphold the responsibility of maintaining the safety of the reputable people of the home we all live in. Yet‚ these veterans are officially recognized
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According to the Great Archaeology; History of Archaeology’s online glossary‚ the definition of a fossil is "the recognizable remains such as bones shells or leaves other evidence tracks burrows impressions of past life on Earth." In more simple terms‚ a fossil is the preserved evidence of structured organic material that once lived on earth. The same glossary defines a mummy as "a corpse whose skin and organs have been preserved by either intentional or incidental exposure to chemicals‚ extreme
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How Technology Affects Us Word Count: 774 Everyone has seen the moody‚ withdrawn kid with music blasting out of his white ear-buds‚ or the girl rapidly texting on her phone. The youth of today are constantly immersed in technological advancements that promote nonstop communication and instant gratification‚ whether through cell phones‚ gaming systems‚ laptops‚ or MP3 players. But are these technological advancements a good thing? I believe that the growth of technology has negatively influenced
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