GEOG1016 Nature Conservation for Sustainable Societies Guidelines on the use of the pdf files of lecture handouts: (1) The files shall only be used by registered students of the course for learning purpose only. (2) The files must not be transmitted in any form to any third parties who are not registered students of the course. (3) The copyrights of all the texts and illustrations in the files must be strictly observed‚ and they must not be copied or used in any way outside the realm of normal learning use
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Purification of Water Domestic: Distillation - In the process of distillation water is heated and evaporation takes place‚ whereby water changes back to water when cooled; this process is called condensation. The condensed water is the purest form of water‚ free from microbes‚ and impurities. Boiling - Boiling is the best and simplest method to purify water. After straining the water twice through clean muslin cloth‚ it is boiled for ten minutes lo kill the microbes present in it and also remove
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i.e. determination of crops’ consumptive use of water in such areas. Crops’ consumptive use of water is related to evapo-transpiration by a coefficient called crop coefficient‚ which depends on type of crop and its growing stage. In addition‚ evaporation measurements are of great importance for irrigation systems design‚ irrigation rotations‚ and development of hydrologic models. In the present research‚ a seasonal regression-autoregressive “S(REG_AR)” model has been developed and used to simulate
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heterogeneous mixture composed of 5.00 grams of salt‚ 2.00 grams of sand‚ 50.0 mL of water‚ 15.00 grams of pebbles‚ and 1.00 gram of iron filings‚ and leave as much salt as possible remaining. Using separation techniques including magnetizing‚ evaporation‚ filtration‚ etc. the heterogeneous mixture was thoroughly separated into 4.88 grams of salt. There have been some errors regarding the isolation techniques and processes‚ however‚ the mass of salt at the end is substantial enough to conclude that
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has a limited amount of water‚ that keeps going around and around and around and around and (you get the idea) in what is called the "Water Cycle". This cycle is made up of a few main parts: • evaporation (and transpiration) • condensation • precipitation • collection Evaporation: Evaporation is when the sun heats up water in rivers or lakes or the ocean and turns it into vapor or steam. The water vapor or steam leaves the river‚ lake or ocean and goes into the air. Condensation:
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As a liquid evaporates‚ it lowers the temperature of the substances around them‚ because evaporation is an endothermic process. In the graph‚ each substance has a different curve. Some lowered the temperature much more than others. This is because different substances require differing amounts of energy to evaporate. To test this‚ the temperature change from the evaporation of 4 different alcohols was measured and compared‚ along with cyclohexane. Methanol had the largest change in temperature‚ 18
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RESPONSE OF LOW FREQUENCY HARVESTING SYSTEMS OF RUBBER UNDER DRIER CLIMATIC CONDITIONS IN SRI LANKA K.V.V.S. Kudaligama1*‚ V.H.L.Rodrigo1‚ K.M.E.P. Fernando2 and P. A. J. Yapa 1 Department of Biochemistry and Physiology‚ Rubber Research Institute‚ Sri Lanka 2 Department of Botany‚ University of Sri Jayewardenepura‚ Sri Lanka * vskudaligama@yahoo.com‚ Tel-++ 94 34 2247426‚ Fax- ++ 94 34 2247427 Abstract Escalating cost of production (COP) and inadequate supply of skilled harvesters are among
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Seawater Oceanography/SCI209 June 30‚ 2014 Professor Barbara Shoemaker Seawater The Earth is almost entirely surrounded by seawater. Through evaporation of seawater‚ water is returned to the Earth through precipitation. The precipitation allows for these salty waters to be filled with drinkable water. The combining forces of freshwater and salt water allow conversion techniques to turn undrinkable water into drinkable water. Such conversions help provide human life with water‚ one of the most
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24 Intermolecular Forces Intermolecular Forces Lab II. Goal: The central goal of this experiment is to depict the intermolecular forces of four different properties of solubility‚ evaporation‚ viscosity‚ and boiling point. The reason for achieving the goal is so we can further understand solubility‚ Evaporation‚ viscosity‚ and the boiling point of liquids. III. Experimental procedures In this Lab there were four different stations to experiment with‚ my partner and I started with grabbing
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PAPER 3 Answer all question. Question 1 Transpiration is the evaporation of water vapour from the leaves surface. Air movement is one of the factor that affects the evaporation of water vapour. A group of student carried out an experiment to study the effect of air movement on rate of transpiration of plants. Diagram 1 shows the apparatus used by the students. The experiment was conducted under still air and strong fan speed. Diagram 1 The time taken for the air bubble in the capillary tube to
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