11 Nov 20014 Air pollution effect on humans There’s nothing quite like opening the door and breathing fresh‚ clean‚ air—but how clean is the air you’re breathing right now? Unless you’re a scientist with a chemistry lab at your fingertips‚ there’s no real way of knowing. The gases you’re sucking up through your nose could be slowly killing you: according to the World Health Organization‚ around two million people die prematurely from the effects of polluted air every single year. Air pollution has
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Air pollution consists of chemicals or particles in the air that can harm the health of humans‚ animals‚ and plants. It also damages buildings. Pollutants in the air take many forms. They can be gases‚ solid particles‚ or liquid droplets. Sources of Air Pollution Pollution enters the Earth’s atmosphere in many different ways. Most air pollution is created by people‚ taking the form of emissions from factories‚ cars‚ planes‚ or aerosol cans. Second-hand cigarette smoke is also considered air
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sulphate is dissolved in water is first determined. Secondly‚ the enthalpy of solution of copper(II) sulphate pentahydrate in water is determined. ‚ Thirdly‚ the enthalpy of hydration of copper(II) sulphate is evaluated by using Hess’s Law of Constant Heat (Enthalpy) Summation. ------------------------------------------------------------------------------------------------------------------------- Theory: 1. Define the terms ’enthalpy of solution’ and ’enthalpy of hydration’. 2. [pic] is the enthalpy
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of standardized tests are answering affirmatively to what the questions has asked. These days schools are using this method to measure one’s brilliance. Although standardized tests show the fundamental‚ basic knowledge of students‚ they are not necessary because they do not go indepth into a student’s knowledge and using those scores to decide their future is not reasonable. Standardized tests are put on high pedestals and people say they deserve to be held on high because they have lasted for very
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MA‚ PAULINE Date Performed: 10 SEPTEMBER 2014 NACIONGAYO‚ DANIELLE Date Submitted: 17 SEPTEMBER 2014 TEDERA‚ YVES HEAT EFFECTS AND CALORIMETRY Experiment No. 2 I. RESULTS A. Determination of Heat Capacity In this experiment‚ an improvised calorimeter was used to determine the heat capacity. The calorimeter weighed 4.47 grams prior to the addition of water. Tap water‚ 40 mL to be exact‚ was added to the calorimeter which increased the weight to 43.87 grams. The water was measured using
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the text conform to‚ or deviate from‚ the conventions of a particular genre‚ and for what purpose? ! ! Known for his dislike of conventions and structure‚ the highly structured nature of a sonnet would‚ at first glance‚ appear to be unappealing to e e cummings. However‚ Cummings has struck the fine balance between maintaining traditional form and introducing radical reform. His sonnet ‘it may not always be so’ conforms to the conventional fourteen-line length‚ positioning of the volta and iambic
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Our Environment: Why Clean Air is Important Air pollution has many different causes and affects us in many different ways. Pause a moment to make a list of all the different types of air pollution you come across in a single day and you might be surprised. From car exhausts to cigarette smoke‚ garden bonfires to forest fires‚ rotting food on landfills to fumes from factories...each is an example of air pollution. Air pollution can come in varying degrees on varying scales. A person burning a small
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tidal power. The earth itself is the key source of energy such as the following: Gravitational energy for hydroelectric power Chemical energy for nuclear power‚ electro- chemical reaction and hydrogen fuel cells. Geothermal power from the heat of lower crust. Other exciting energy sources are currently untapped‚ such as energy in the earth’s magnetic field‚ the energy potential caused by temperature differences in different layers of the ocean and the energy contained in combustible
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Section Question 1 (a) Give two reasons why cooking gas is considered to be a better fuel than kerosene oil or wood. (b) [2] State two modifications in the design of an engine that have not only improved the efficiency of the engine but has also reduced pollution. (c) [2] State two advantages associated with the development of small scale industries. [2] (d) State two reasons for the melting of the Gangotri Glacier. [2] (e) State any two provisions given in the
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Punch lines are the need for advertising the product as they are necessary for a product to be unique and be different. For example: “The complete man” which makes us remember the company Raymonds. Punch lines are important to make the customer remember about the product identity. It helps to recall a product easily. But it cannot rule the advertisement as ultimately the customer remembers quality and cost. Customer only sees whether he is getting the satisfactory service or not. Also after service
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