cancer‚ etc. In the year 1985‚ NASA detected the thinning out of the ozone layer leading to the formation of ‘ozone hole’ in Antarctica. Since then the scientists have been regularly monitoring the thickness of the ozone layer. They have found that the thickness of the ozone layer has been decreasing day by day at the alarming rate as a result of the environmental pollution. The main culprits of the serious depletion of ozone layer are found to be the manmade chlorofluorocarbons (CFC’s). These CFC (also
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Every time 1% of the ozone layer is depleted‚ 2% more UV-B is able to reach the surface of the planet. So in short‚ without the ozone layer everything on earth will burn. The ozone layer is just as important to us as oxygen‚ without it the harmful UV radiation would give us server burns and destroy our delicate ecosystems. Even though there is hard evidence that proves that ozone depletion is harmful for organisms on earth‚ there are a few groups who think that the ozone layer is a “myth” aka doesn’t
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color TLC plate. In a column chromatography‚ cotton and sand is placed in purpose of holding silica gel and prevent leakage of adsorbent particles. Dry loading is then applied to the column to eliminate applying the polar solvent as well as to allow separation to have enough time and space in process of dissolving and loading. At the beginning of the chromatography‚ petroleum ether‚ 8%tBME/petroleum ether‚ and pure tBME are used respectively. As the solvent pass down the column‚ differential interaction
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The ozone layer diminishes more each year. As the area of polar ozone depletion (commonly called the ozone hole) gets larger‚ additional ultraviolet rays are allowed to pass through. These rays cause cancer‚ cataracts‚ and lowered immunity to diseases.1 What causes the depletion of the ozone layer? In 1970‚ Crutzen first showed that nitrogen oxides produced by decaying nitrous oxide from soil-borne microbes react catalytically with ozone hastening its depletion. His findings started
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in a forest with nobody present‚ does it make a noise? Does the moon exist when there’s no-one to look at it? And is the hallway behind me still an ominous jumble of ornate casements and baleful oil paintings‚ or has it turned into something else? Layers of Fear makes space for plenty of gristle and gore during its five hour playtime‚ but the game’s greatest weapon is simply the dread of objects misbehaving when left unobserved. This is an anxiety games in general are well-placed to exploit - game
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The lithosphere is vital to life on earth. It supports the food webs that sustain life; it provides us with a vast collection of natural resources‚ and it plays a vital role in the purification of the water we drink. We also depend on it to dispose of some of our wastes. The increasing population within the world has had an impact on the lithosphere and consequently as led to the deterioration of this essential component of the biophysical environment. Land degradation has become one of the
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4.6 An attendant at a car wash is paid according to the number of cars that pass through. Suppose the probabilities are 1/12‚ 1/12‚ 1/4‚ 1/4‚ 1/6‚ and 1/6‚ respectively‚ that the attendant receives $7‚ $9‚ $11‚ $13‚ $15‚ or $17 between 4:00 P. M. and 5:00 P. M. on any sunny Friday. Find the attendant’s expected earnings for this particular period. 4.7 By investing in a particular stock‚ a person can make a profit in one year of $4000 with probability 0.3 or take a loss of $1000 with probability 0
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Experiment #1: Mass‚ Volume and Density Performed: 2/2/11 Turned in: 2/9/11 The purpose of this experiment is to verify the independence of X and Y motion for a projection. We watch the professor perform this experiment. The equipment used in this experiment was a projectile launcher (ME-6800)‚ a drop shoot accessory (ME-9859)‚ one photogate (ME-9204A)‚ white paper‚ carbon paper‚ two time-of-flight timing pad (ME-6810)‚ two balls (ball 1 and ball 2)‚ and an interface computer. Ball 1 is dropped
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It is tri atomic oxygen (03) and is a gas found in the troposphere as well as in the stratosphere. Tropospheric ozone is undesirable since it is a pollutant these‚ causing photochemical smog and greenhouse effect. In the stratosphere‚ it acts as a protectant since‚ (i) It absorbs the dangerous UV-radiations (ii) It helps to trap the weather pattern within the troposphere‚ by generating a temperative inversion in the stratosphere. Tropospheric ozone is increasing due to human activities‚ while
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------------------------------------------------------------------------------ 1. Preliminary Remarks Confinement of columns by means of FRP jackets is done by retraining the dilation of concrete by wrapping the fibers in the hoop direction of concrete columns. Confinement of columns by FRP wraps is termed as a passive strengthening technique since the fibers do not play any role in the elastic response of the axially loaded column. The tendency of concrete to dilate after cracking and the radial stiffness of the confining
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