WATER: The earth and our bodies are made up of mostly water. We use water on a daily; bathe‚ drink‚ cook‚ water our lawns and plants‚ and play in. With a growing population‚ our water supply is becoming low‚ making us to have to cut back on watering our lawns and water use. Then‚ there are factories dumping harmful wastes into our drinking water‚ making it harmful for people to use water. All the chemicals that are dumped into our water can cause cancer and other health issues. In other countries
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How does acid precipitation affect marble and limestone buildings? Acid rain is a type of precipitation that is characterised by containing contaminating substances such as sulphuric and nitric acid‚ both of which have harmful effects on the environment. Both marble and limestone are extremely vulnerable to the damages done by acid rain due to their components. These materials contain calcite‚ a substance that easily reacts and dissolves with acid. Acid rain is the cause of the destruction of many
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and heating with carbon or carbon monoxide (or called the “Blast Furnace”). Some other metals like Silver and Gold occur naturally in the Earth’s crust as “native metals”. The method to extract the metal depends on its place in the Reactivity Series (how reactive the metal is). The more reactive the metal‚ the more difficult it is to extract. Thus electrolysis would be used more the more reactive and the “Blast Furnace” for the less: Metal Method of Extraction Potassium Electrolysis Sodium
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Essay on EKG Replacement for missing work By Mohammad Chenchar http://www.webmd.com/heart-disease/electrocardiogram http://www.nobelprize.org/nobel_prizes/medicine/laureates/1924/einthoven-bio.html http://www.ecglibrary.com/ecghist.html EKG is an electrocardiogram‚ a machine used to check on problems with your electrical activity with your heart. An electrocardiogram machine translates the heart’s electrical pattern into lines that specific professionals can read
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Samira Jamil Wednesday 18th September 2013 Content Page Task 1 Identify the different reasons people communicate Page 3 Task 1.1 How communication affects relationships at work Page 5 Bibliography Page 7 Communication is basically the giving and receiving of information. It’s the base of everyone does in every life. What we say‚ how we say it and what we do communicates lots of messages that are given and received consciously and subconsciously by using different
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this article‚ we’ll see how these parts come together to produce bright light for hours on end. Light Basics Light is a form of energy that can be released by an atom. It is made up of many small particle-like packets that have energy and momentum but no mass. These particles‚ called light photons‚ are the most basic units of light. (For more information‚ see How Light Works.) Atoms release light photons when their electrons become excited. If you’ve read How Atoms Work‚ then you know that electrons
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went from paper to paper my writing only improved as I learned new skills and better ways to write. The essay we first wrote was the introduction essay‚ it was simply to get to know different interesting things about each student and get a feel for how we all write. On this paper I did well writing all about fostering kittens back home with my family. My details were good‚ I had a clever title‚ and my word choices really helped not make the paper repetitive‚ all of this good content I had in my paper
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HOW TO MAKE BABY STOP CRYING Babies during the early stage cry a lot and it becomes very difficult for parents to understand the reason and find a cure for the same. They generally find such situations very confusing and do not realise what is to be done to handle such a situation. Babies may cry due to the following reasons- HUNGER- this is the main reason why a baby may cry. When a baby is hungry‚ he or she may feel frustrated and start crying. So it should be checked that the baby is fed at regular
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HOW AN ELECTRIC GENERATOR WORKS Electrical generators by definition are devices that convert mechanical energy into electric energy. The mechanical energy in turn is produced from chemical or nuclear energy in various types of fuel‚ or obtained from renewable sources such as wind or falling water. Steam turbines‚ internal-combustion engines‚ gas combustion turbines‚ electric motors‚ water and wind turbines are the common methods to supply the mechanical energy for such devices. Generators
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city-states. As we know‚ catapults were mainly used in the medieval era‚ or rather‚ it is most famous for use in that time‚ which you have probably seen in movies and books. How Does the Catapult Work? There is quite a bit of science behind the making of the catapult‚ and how it works. It is similar to a ballista that it works by storing tension in a flexed piece of wood or in twisted ropes. It’s similar to a bow‚ but on a much larger scale. However‚ that is just the catapult which is probably most
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