contributor to the rise in the average temperature of the Earth’s climate known as global warming. In the United States electric power plants emit about 2.2 billon tons of carbon dioxide (CO2) each year, which is about 40% of the nation’s total carbon emissions (NRDC, 2014). It is generally accepted by climate scientist that if annual carbon emissions are not reduced by at least 80% by the year 2030 then there will be an increase of greater than 2°C (35.2°F) which is considered an acceptable safe level or
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METHANOGENS HALOPHILES THERMOPHILES 1. They play a role in the nitrogen cycle 2. They play a role in the carbon cycle (some can fix carbon) 3. Some are commensals; they live inside the gut of humans and ruminants, where they help in the digestion of food 4. Certain groups (methanogens) can produce biogas 5. Archaea are used in sewage treatment 6. Certain enzymes from archaea that live at high temperatures or other extreme conditions are used in biotechnology 7. Certain archaea
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International Union of Pure & Applied Chemistry • The IUPAC nomenclature system is a set of logical rules devised and used by organic chemists to name the organic compounds. Prefix − Parent − Suffix What are the How many What family? substituents? carbons? IUPAC Rules 4. Name each substituent according to its chemical identity & the no. of the C atom to which it is attached ⇒ For identical substituent, use the prefix di, tri… & write appropriate C no. for each substituent 5. Separate no.
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a number of Government environmental policies, including the Renewables Obligation and other levies applied to energy usage to fund low-carbon power generation. Energy companies also face charges for schemes including the European Union’s Emissions Trading Scheme, costs which are then passed on to customers. “Green” levies are meant to increase the price of carbon-emitting energy use, with the aim of funding alternative sources and encouraging consumers to change their behavior. Much of the money
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created by nature are natural causes. One natural cause is an emission of methane gas from wetlands and frosty tundra. Methane gas is called a greenhouse gas that traps heat in the atmosphere of earth. The earth cycle of atmosphere changer is another natural cause. And this atmosphere cycle approximately lasts for 40,000 years. 1 2. Man-made Causes: Man-made causes are the major reasons of global warming. At first, pollution is one of the leading man-made harms. Pollution produced in various sizes
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silicon 14 | aluminium ← silicon → phosphorus | C ↑ Si ↓ Ge | Periodic Table - Extended Periodic Table | | | General | Name, Symbol, Number | silicon, Si, 14 | Chemical series | metalloids | Group, Period, Block | 14, 3, p | Appearance | dark gray, bluish tinge | Atomic mass | 28.0855(3) g/mol | Electron configuration | [Ne] 3s2 3p2 | Electrons per shell | 2, 8, 4 | Physical properties | Phase | solid | Density (near r.t.) | 2.33 g·cm−3 | Liquid density at m
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debatable topic. As context of my argument, I strongly argue that they are not eco-friendly-when completely relied upon. So what are Biofuels? A biofuel is a fuel that contains energy from geologically recent carbon fixation. These fuels are produced from living organisms. Examples of this carbon fixation occur in plants and microalgae. These fuels are made by a biomass conversion (biomass refers to recently living organisms, most often referring to plants or plant-derived materials). This biomass can
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within the thermal infrared range. This process is the fundamental cause of the greenhouse effect.The primary greenhouse gases in the Earth's atmosphere are water vapour, carbon dioxide, methane, nitrous oxide, and ozone. The causes of increasing greenhouse gases are: Burning fossil fuels, thus releasing into the atmosphere carbon that has been safely stored for millions of years by burning coal, oil and natural gas for transport and electricity. An enormous demand for electricity. The growing population
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life cycle. A star is made of mostly hydrogen and helium. The reason a star shines is because it burns hydrogen into helium in their cores. Eventually a star will become a black hole or a white dwarf, and that will be the end of the life cycle for the star. Just like the life cycle has to end somewhere it has to start somewhere too. The life cycle starts as a Stellar Nebula and there is two ways the life cycle can continue
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throughout the world with these movements. Until the industrialization of the human population a hundred and sixty years ago our atmosphere maintained a unique combination of chemicals. Absorbing the natural emissions from volcanic action and the life cycle, balancing the chemical composition providing a life sustaining biome. The atmosphere provides both life and protection to the ecosystems on the planet from the sun’s UV rays and a variety of debris from space. The atmosphere acts as a blanket
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