CHAPTER 1 WATER AND THE BLUE PLANET 1.1 Introduction Of “The Blue Planet” (The Earth) 71% of the earth is covered by water. 29% of the surface is covered by land. It is the only known planet with life. Fig1.1 the blue planet The earth is known as “Blue Planet” occupies a special place in the solar system. The earth consists of three spheres. They are known as Atmosphere‚ the Hydrosphere and the Lithosphere. The interrelationship that exists among these three spheres is the foundation
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UNICEF PROMOTION OF HOUSEHOLD WATER TREATMENT AND SAFE STORAGE IN UNICEF WASH PROGRAMMES January 2008 PROMOTION OF HOUSEHOLD WATER TREATMENT AND SAFE STORAGE IN UNICEF WASH PROGRAMMES Why is household water treatment and safe storage an important intervention for preventing disease? Unsafe drinking water‚ along with poor sanitation and hygiene‚ are the main contributors to an estimated 4 billion cases of diarrhoeal disease annually‚ causing more than 1.5 million deaths‚ mostly among children
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included another rewrite of Withers songs‚ Gonna Be a Lovely Day‚ and won Franklin this third Grammy. The Nu Nation Project was number 1 on the Billboard Conterporary Christian Albums chart for 23 weeks‚ and number 1 for 49 week s on the Billboard Gospel Alums
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Water Quality and Contamination Water Quality and Contamination Introduction Abstract My lab report was based on how ground water could be affected by contaminants that surround us everyday. “ Access to safe drinking water depends not only on the quality of water at source but also on contamination throughout it’s way to the user and practices related to purification and sanitation” ( Mishra‚ S.‚ & Nandeshwar‚ S. 2013).I was very surprised that the detergent
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China circa 3000BC Casting 2.810 Prof. Timothy Gutowski Casting since about 4000 BC… Ancient Greece; bronze statue casting circa 450BC Iron works in early Europe‚ e.g. cast iron cannons from England circa 1543 Outline • Sand Casting‚ Investment Casting‚ Die Casting • Basics and countermeasures • Phase Change‚ Shrinkage • Heat Transfer • Pattern Design • Variations & Developments • Environmental Issues Casting Readings; 1. Kalpakjian‚ Chapters 10‚ 11‚ 12 2. Booothroyd‚ “Design for Die
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Solution(s) to the Problem of Waste Contamination in Water - Eutrophication By Patricia Lopes The degree of eutrophication in water bodies depends‚ mostly‚ on the concentration of nutrients usually phosphorus in the water‚. Calculations show that because of the increase of population growth and urbanization‚ the world input of phosphorus into the rivers will have reached 2.56 million tons per year by the end of the 20th century. Also‚ an additional 0.6 million tons‚ are added mainly due to agricultural
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------------------------------------------------- DENTAL • MATERIALS * Study of physical and chemical properties of the metallic and non-metallic materials used in dentistry OBJECTIVES 1. In order to know the basic physical and chemical properties as they are related to its manipulation by the dentist. 2. To bridge the gap between the knowledge obtained in the basic courses like chemistry‚ physics and its relation… Physical properties: hardness‚ strength‚ brittleness Chemical
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Toothpaste is a paste or gel dentifrice used with a toothbrush as an accessory to clean and maintain the aesthetics and health of teeth. Toothpaste is used to promote oral hygiene: it serves as an abrasive that aids in removing the dental plaque and food from the teeth‚ assists in suppressing halitosis‚ and delivers active ingredients (mainly fluoride) to help prevent tooth and gum disease (gingivitis).[1] Most of the cleaning is achieved by the mechanical action of the toothbrush‚ and not by the
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A Project Feasibilty Study for Jelly Cake A Feasibility Study Presented to the Faculty Committee of the College of Business And Accountancy In Partial Fulfillment of the Requirements For the Degree of Bachelor Science in Accountancy By: Amoranto‚ Charmaine Marie G. Gonzales‚ Charisse Bernadette D. Remolacio‚ Dianne G. . Chapter 1. The Problem And Its Setting INTRODUCTION Gelatin is a translucent‚ brittle‚ flavorless solid substance. It is commonly used as a gelling agent
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1 Which animal tissue is commonly known as packaging tissue? 1 2. Calculate the formula unit mass of CaCO3 (given at masses: Ca = 40. 0µ‚ c=12 0µ‚ 0 = 16.0µ . determines ‘pitch’ of sound. 1 5. How does the speed of sound change on increasing the temperature? 1 6.What do you mean by photoperiod? Name two processes that are dependent on photoperiod. 2 7. What will happen if: i) The skin epithelium
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