us with oxygen‚ which is essential for our bodies to live. Without it‚ we would die within minutes. Pure air is a mixture of several gases that are invisible and odourless. It consists of about 78% nitrogen‚ 21% oxygen‚ and less than 1% of argon‚ carbon dioxide‚ and other gases — as well as varying amounts of water vapour. Pollution is one of the major problems of our country. Air pollution is the introduction into the atmosphere of chemicals‚ particulates‚ or biological materials that cause discomfort
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Carbon fibre-reinforced carbon (aka carbon–carbon‚ abbreviated C/C) is a composite material consisting of carbon fibre reinforcement in a matrix of graphite. It was developed for the nose cones of intercontinental ballistic missiles‚ and is most widely known as the material for the nose cone and wing leading edges of the Space Shuttle orbiter. It has been used in the brake systems of Formula One racing cars since 1976; carbon–carbon brake discs and pads are a standard component of Formula One brake
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Carbon and Its Compounds Carbon: Introduction Atomic Number: 6 Electronic Configuration: 2‚ 4. Valence electrons: 4 Property: Non-metal Abundance:- Carbon is the 4th most abundant substance in universe and 15th most abundant substance in the earth’s crust. Compounds having carbon atoms among the components are known as carbon compounds. Previously‚ carbon compounds could only be obtained from a living source; hence they are also known as organic compounds. Bonding In Carbon:- The Covalent
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important‚ this being carbon. There are many interesting things about carbon including‚ facts about it‚ its history‚ and what it is used for. Carbon is a very important element‚ in fact‚ life could not exist without it. Carbon (C on the periodic table) is a chemical element and is the sixth most abundant element in the world. Carbon is the 6th element on the periodic table in group 14‚ period 6‚ it has six protons‚ six electrons‚ and six neutrons‚ with an atomic mass of 12.01u. Carbon has a boiling point
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use of activated carbon which is used as an adsorbent. This is due to the adsorptive properties of activated carbon(Cecen & Aktas‚ 2011). Agricultural by-products represent a considerable quantity of harvested commodity crops. The use of by-products as precursors for the production of widely used adsorbents‚ such as activated carbons‚ may impart a value-added component of the overall biomass harvested. In most developing countries‚ the activated carbon is imported
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removal of toxic or recalcitrant organic pollutants from wastewater. The most common adsorbents on the market today are activated carbon‚ silica gel‚ and alumina‚ because they have large surface areas per unit weight. Activated carbon is produced by roasting organic material to decompose it to granules of carbon - coconut shell‚ wood‚ and bone are common sources. Also activated carbon is the most commonly used adsorbent in wastewater treatment. As Silica gel is a matrix of hydrated silicon dioxide. Alumina
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CHAPTER I Introduction Over 70% of the planet is covered by water. (75% of that is salt water‚ only leaving a 25% as fresh water which can be used for consumption. 70% of the fresh water of our planet is still frozen in the icecaps of Antarctica and Greenland; while the remaining percentage is present as soil moisture‚ or it lies underground as groundwater. Main Problem How can the seawater be utilized for the consumption of different organisms? Sub problems How will the results of the said
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Carbon Cycle Living organisms are significant in the recycling of numerous elements contained in an ecosystem. One of the elements is carbon. Carbon is nonmetal‚ forms over ten million different compounds‚ found in minerals‚ oceans‚ and is the main component of biological compounds. So how do living organisms and their biochemical reactions contribute to the recycling of carbon? Carbon moves through the ecosystem in a cycle‚ in which the living organisms take and release
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The Carbon Cycle The element Carbon is the principle block for the organic compounds that make up life. This is because the study of the Carbon Cycle draws upon theories from biology‚ chemistry‚ geology and oceanography in order to understand the movement of carbon throughout the atmosphere‚ hydrosphere‚ and geosphere. Carbon is made up of four electrons that are able to form with each other; this causes the many different forms of carbon. The most popular form of carbon is carbon dioxide; this
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destructive nature. I will start by describing the carbon cycle and how elements of my lifestyle impact the cycle. Photosynthesis converts the Carbon dioxide gas that exists in the atmosphere and in dissolved water to organic carbon. Organic carbon is brought back into carbon dioxide gas by a process called respiration. There are sources of organic carbon underground in the form of fossil fuels‚ human emissions and volcanic activity brings the stored carbon back into the cycle. As a human being who feed
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