hours. In the petri dish labeled tap water‚ 10 out of 10 seeds sprouted into plant growth as seen in Figure 5.1. The radish plant growth within the tap water petri dish grew so well it started to lift the lid off the dish. The results from the Acid Rain (50% vinegar solution) did not allow any radish seeds to germinate. There were never signs of seed germination while observing the seeds over a three week period. In the petri dish labeled Acid Rain‚ 0 out of 10 seeds sprouted into plant growth as seen
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Essay March 28‚ 2014 ACID RAIN ENVIRONMENAL EFFECTS What is acid rain? It’s a rain or any other form of precipitation that is unusually acidic‚ meaning that it possesses elevated levels of hydrogen ions (low pH). It can have harmful effects on plants‚ aquatic animals and infrastructure. Acid rain is caused by emissions of sulfur dioxide and nitrogen oxide‚ which react with the water molecules in the atmosphere to produce acids. The most obvious environmental effect of acid rain has been the loss
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A buffer is an aqueous solution that allows resistance to significant change in pH when small amounts of strong acids or base are added to it. (Boundless‚ 2015) This is usually formed when a weak acid is added to a salt of its conjugate base. (Chemicool.com‚ 2014) When an Alka Seltzer tablet is dissolved in water‚ a buffer is formed when the weak acid citric acid is present with sodium citrate (citrate ion) the conjugate base (Buffer Balancing Acts Buffers‚ 2009) "Na3C3H5O7 (aq) + 3 HCl (aq)
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Q-1 STATISTICS PLAYS A VITTAL ROLE IN ALMOST EVERY FACET OF HUMAN LIFE.DECRIBE THE FUNCTIONS OF STATISTIC.EXPLAIN THE APPLICATION OF STATISTICS. ANS- MEANING OF STATISTICS- ACCORDING TO SELIGMAN “STATISTIC IS A SCIENCE WHICH DEALS WITH THE METHOD OF COLLECTING‚ CLASSIFYING‚ PRESENTING‚ COMPARING & INTERPRETING THE NUMERICAL DATA TO THROW LIGHT ON ENQUIRY.” ACCORDING TO CROXTON & COWDEN- “STATISTICS IS THE SCIENCE OF COLLECTION‚ PRESENTATION‚ ANALYSIS & INTERPRETATION OF NUMERICAL DATA FROM LOGICAL
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dew‚ or dry particles. • more accurate term is "acid precipitation." • defined as any type of precipitation with a pH that is unusually low The Causes: • occurs when sulfur dioxide and nitrogen oxides are emitted into the atmosphere‚ undergo chemical transformations and are absorbed by water droplets in clouds • then fall to earth as rain‚ snow‚ mist‚ dry dust‚ hail‚ or sleet. • Dissolved carbon dioxide dissociates to form weak carbonic acid giving a pH of approximately 5.6 at typical atmospheric
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Beowulf‚ 50 Years Wiser Beowulf is the epic hero of the Anglo-Saxon poem of the same name. He showed outstanding courage on the battlefield. He has slain many monsters in his time. He killed both Grendel and Grendel’s mother. After those two battles‚ 50 winters have passed and Beowulf has aged. Beowulf now has to battle a fierce‚ fire breathing dragon. In this battle however‚ Beowulf seems to be a different man. I believe that Beowulf has become and wiser‚ smarter man in this battle than in
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CHAPTER 10: COST OF CAPITAL HOMEWORK 1. The Dempere Imports Company’s EPS in 2009 was $2.82‚ and in 2004 it was $1.65. The company’s payout ratio is 30%‚ and the stock is currently valued at $41.50. Flotation costs for new equity will be 15%. Net income in 2010 is expected to be $15 million. The market-value weights of the firm’s debt and equity are 40% and 60%‚ respectively. a. Based on the five-year track record‚ what is Dempere’s EPS growth rate? What will the dividend be in 2010?
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Module 10 Aviation Legislation International Civil Aviation Organization (ICAO) Formed in 1944 in Chicago Part of the United Nations Members are sovereign countries (191 members) Purpose is to harmonize and improve the safety of the international standards in civil aviation Civil Aviation Authority (CAA) *UK Formed in April 1972 as the first unified and independent body controlling civil aviation. Air Navigation Order (ANO) A book which lays down the law of the land
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Chapter 5: Water and Seawater Review Questions (2‚ 4‚ 5‚ 6‚ 7‚ 8‚ 9‚ 10‚ 11‚ 12‚ 14‚ 16‚ 17) 2. Describe what condition exists in water molecules to make them dipolar. The bent geometry of water molecule gives a slight overall negative charge to the side of the oxygen atom and a slight overall positive charge to the side of the hydrogen atom. This slight separation of charge gives the entire molecule an electrical polarity so water molecules are dipolar. 4. How does hydrogen bonding produce
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CHANAKYA NITI CHAPTER ONE TO TEN Thursday‚ May 31‚ 2007 CHANAKYA NITI CHAPTER ONE ENGLISH RENDERING OF SLOKAS CHAPTER ONE 1 I bow my head to almighty Vishnu‚ the lord of all worlds‚ before venturing to put forward the essence of knowledge on politics‚ extracted from several books and scriptures‚ for the general benefit of society. 2 The careful study of politics teaches one to discern what is wrong and what is right. And imparts wisdom to choose the path that leads to success and good
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