Fossil fuels, based on the article “Today and Tomorrow”, are generally natural resources. From the word itself, fossil, fossil fuels are formed from remnants of prehistoric creatures. Most of the biological matter formed to fossil fuels are from plants and microorganisms. Because of being exposed to vast heat and pressure from the inner sections of the earth through an estimate of one hundred to four hundred million years ago, these biological matters have physically and chemically change to form fossil fuels. Fossil fuels are mainly being used as a source of energy.
grade and they are purchased from Otto Chemie Company. The different types of nitrate precursors was used to preparation of the catalyst and they are dried at 120°C for 12 hr in an oven and then calcination at 300oC for 2hr in a furnace. The calcination of the precursors is done just before the activity measurement of the catalyst. The calcination of different nitrate precursors was carried out in three ways;
2018, Accessed 16 March 2018) There are two types of photosynthetic processes; one includes oxygenic photosynthesis, which is most common and demonstrated through plants, algae and cyanobacteria while the other one is an-oxygenic photosynthesis. (From Light Energy to Chemical Energy, Accessed 08 March 2018). Products to are made through photosynthesis as glucose is transported in to the plant as soluble sugars and stored as starch which is insoluble hence it is unable to escape from the cell. Although starch is able to revert back into glucose in order to release energy by respiration both useful for fats and oils for storage through the plant, proteins for growth and repair and cellulose for their cell walls. Figure 2: Structure of a leaf (FTEXPLORING, 2014), Accessed 16 March 2018) Chlorophyll is an essential need to photosynthesis as it is able to trap both blue and red light.
Carbon from the atmosphere is absorbed into plants during photosynthesis and when the plant decays or is burnt that carbon goes back into the atmosphere. Because it is a cycle, the next crop of plants absorb that carbon over again, so this process does not contribute much to the release of carbon dioxide into the atmosphere. 3.2 Cons of Biomass Energy 3.2.1 Requires Space Big areas are required for all the different processes that is required in harnessing energy from biomass. The areas that are needed for storing can be particular large and may lead to deforestation. 3.2.2 Emissions The principal concerns about emissions and the impact of combustion systems on air quality are in relation to carbon dioxide and carbon monoxide (〖CO〗_2 and CO), small particulates (PM10 and PM2.5; particles smaller than 10 microns and 2.5 microns respectively), oxides of nitrogen (NOx) and sulfur dioxide (〖SO〗_2).
This is evident in Figure … where an equivalent amount of energy is given, the nuclear energy is able to sustain power up to years, where normal fossil fuel can only sustain up to a few days. Although there are debates that the life span of nuclear power sources such as Uranium is low and is comparable to oil, this do not pose a threat as nuclear energy can be recycled. In addition, nuclear power plant only emits hot water into the environment which makes it environmental friendly. In fact, little or almost no carbon dioxide is being released into the atmosphere. The little amount of carbon dioxide is produced because of the mining and construction of the power plant, however the amount released is not comparable to that of other fossil fuel.
In addition, nuclear power plants do not produce green house gases as byproducts. Nuclear energy may be the solution that eliminates our concern for energy production in the future, but it still remains a huge issue for the environment. Despite its wide use in many developed countries, nuclear energy poses many threats to both the
The environmental impact of the coal industry includes sally such as land use, waste management, water and air pollution, caused by the drawing coal from mines, processing and the use of its products. In addition to environmental hazard, coal burning produces hundreds of millions of tons of solid waste products perennially. Renewable energy is energy source that can be renewed naturally, like deriving power from solar, wind, geothermal. Energy produced from the refining of biomass is also classified as renewable. Coal, oil natural gases are the finite sources available for us.
Solar energy is the energy received by the earth from the sun that is converted into thermal or electrical energy (Tran et al., 2016). It is an important source of renewable energy and its technology are roughly branded as either solar energy or active solar provisional on how they capture and distribute solar energy or converted it into solar power. Although solar energy influence earth’s climate and weather, solar energy provide 0,5 percent of the world’s electricity, expect believes that sunlight has the potential to supply 5000 time as much energy as the world consumes (Tran et al., 2016). Broadly speaking, solar energy is a term used to describe a range of methods for obtaining energy from the sun. The large magnitude of solar energy available
Geothermal Energy “There is an urgent need to stop subsidizing the fossil fuel industry dramatically reduce wasted energy and significantly shift our power supplies” (McKibben). Geothermal energy is the heat from the earth.Resources of geothermal energy range from the shallow ground to hot water and rock beneath the earth’s surface.people can capture this energy through power plants,which use heat from deep inside the earth to generate steam to make electricity.A geothermal system is three to four times more efficent than the most efficent ordinary system.Although the sun does heat on the earth´s surface heat from inside the earth is not caused by the sun.Geothermal energy is positive because It´s good,and it helps the economy. However,Geothermal
It is estimated that total biomass of the earth is 560 billion metric tons (approximately) out of which 146 billion tons of biomass is generated by plants . This is a common term used by the biofuel industry to refer to biological materials from living or recently living organisms but not restricted to plants derived materials only. Biomass can be used as a fuel by direct and indirect means that is through burning and chemically or biologically converting it as a fuel. Biofuel and its History Biofuels are fuels that are produced directly or indirectly from organic material which includes plant materials and animal waste. Biofuels can be solid,