because it was free admission but the weather conditions were not favorable as it was raining. Nevertheless, I paid for a general admission ticket that cost a whole $5 because I am a Chicago resident. This only gave me access to the Caribbean Reef, Waters of the World and Amazon Rising exhibits. The atmosphere inside this building was amazing due to curiosity of the wide age group. People were interested in the different types of reptiles and aquatic life and wanted to know more, so did I. The
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g/ml 1,2,3 – propanetriol Mineral 21 2.80 g/ml Schist Misc 80 0.014 g/ml Polyurethane Sources of error: I could have splashed out some water when placing objects in beaker to measure. I could have missed measured with the caliper I could have missed calculated the densities due to wrong measurement of mass and volume of the object. The densities were very close with
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other obstructions and to submerge in water. AP&L recorded the easements, and anyone who purchased any of the lakeside property was aware of the flood easements. In May of 1990 heavy rains fell in the area, so reaching up to ten inches which casued the highest levels ever recorded. In order to avoid flooding Lake Hamilton AP&L decided to open the Carpenter dam gates. By opening the dam, Lake Catherine flooded and caused up to twenty-five feet of water to rise in some areas which caused extensive
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CHARACTERISTICS OF REFRIGERANTS Pure R-12 (CC 1425F425) is colorless. It is odorless in concentrations of less than 20 percent by volume in air. In higher concentrations, its odor resembles that of carbon tetrachloride. It has a boiling point of -21°F at atmospheric pressure. At ordinary temperatures under a pressure of approximately 70 psig to 75 psig, R-12 is liquid. Because of R-12’s low boiling point at atmospheric pressure, you must always protect your eyes from contact with
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during this pre monsoon time, there occur occasional heavy rains which cause serious damage to the crop. Before inventing techniques to overcome this problem, it is necessary to assess the losses due to water logging. Harmful effect of water logging on different physiological and yield attributes has been
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We started our excursion up Table Mountain, where we stopped at the Rhodes Memorial. From Rhodes Memorial the urbanization of Cape Town and the effects of urbanization on the land is very much evident. The acid sand plain was evident as well as the Malmesbury shale and the vegetation associated with it. It was clear that’s Rhodes Memorial itself was built from granite most likely situated in the area, the granite is situated along the table mountain and along Chapman’s Peak. The granite in some
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CHAPTER 1:UNIT OF MEASUREMENT 1. i) ii) iii) Write the SI prefixes for : nano and deci milli and mega kilo and centi 2. 6.0 km is how many micrometers? 3. How many milliliters is 0.005 L? 4. Lead melts at 601.0 C. What temperature is this in F? 5. Many home freezers maintain a temperature of 0 F. Express this temperature in C 6. Liquid nitrogen boils at –195.8 C. Express the boiling point of liquid nitrogen in kelvin. 7. Dry ice (carbon dioxide) changes from a solid to a gas at –78.5 C. What
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from then on none of us ever thought there was any place in the world like that lake in Maine. We returned summer after summer--always on August 1st for one month. I have since become a salt-water man, but sometimes in summer there are days when the restlessness of the tides and the fearful cold of the sea water and the incessant wind which blows across the afternoon and into the evening make me wish for the placidity of a lake in the woods. A few weeks ago this feeling got so strong I bought myself
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percent of freshwater. Water is indispensable for farming. Government financial need has made growing crops a business profitable causes many countries to grow crops that are inappropriate for the local climate and soil. The soil salinity (saltiness) increases when overproduction takes place, therefore growing hardy crops and raising cattle becomes more difficult. In turn, pesticides and chemicals become major use by farmers to assist produce crops. The remaining water sources pesticide chemicals
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distillation in vacuo. For example, while water boils at 100oC (or 212° F) at 760 mm Hg, it boils around 22oC at 20 mm Hg. The boiling point of a liquid is a physical characteristic of a compound. Many factors go into the estimation of the boiling point of a liquid such as the shape (round, oval, elongated), the mass and most importantly, hydrogen bonding (H-bonding). Methane with a mass of 16 does not engage in H-bonding and is a gas at room temperature while water (mass 18) boils at 100oC. While we can
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