Dehydration The human body is made up of over 60% water weight. All of the tissues in the body contain water and muscle is about 75% water, while bone is about 25% water and some water is found in cells. Water is essential to the human body. Not only is water part of the makeup of the body it is also a vital part of the body’s functions. Water is in the bloodstream cells and the spaces between the cells. Water moves back and forth between body compartments in order to equalize the
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The Greenhouse Effect Introduction Greenhouse effect refers to an atmospheric process by which short wavelenghts of the visible light from the sun pass through the atmosphere where they are absorbed or trapped. However, part of light emitted from the sun in form of long wave is re-radiated from heated objects on the earth’s surface in to the atmosphere. Presence of greenhouse gases in the atmosphere does not allow the radiations to pass through. The greenhouse gas molecules are more complex than
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South Africa Introduction South Africa lacks an abundance of clean drinking water. In order to plant their crops or quench the thirst of their children, women have to walk long distances to a pump that retrieves groundwater. After, they have to carry the large container back home on their heads or in a wheelbarrow. One entrepreneur, Trevor Field, paired up with an inventor to find a solution to this problem. He came up with the PlayPump, a roundabout outdoor pump where kids played and water gets
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The Vacuum Way Back Machine: A Look at How It Was in the Early Days In the 1960s, when I first became interested in vacuum technology, the only books available to me were two volumes in the Portland (Maine) Public Library. The first was John Strong’s Procedures in Experimental Physics [1], published in 1938. The second was John Yarwood’s High Vacuum Technique [2], published in 1945. I guess that vacuum was not exactly a hot topic in Portland. Strong’s book covered many topics besides
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Copyright Copyright© 2013 University of Namibia. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise without the prior permission of the publishers. Edited and Published by the Unit for Professional Development University of Namibia, Windhoek Date next revision: 2018 Unit for Continuing Professional Development University of Namibia Private Bag
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Science Form 1 note GOOD LUCK Teacher zaidi@maher2010 CHAPTER 4 : THE 4.1 1. 2. 3. Air 1. 2. 3. 4. VARIETY OF RESOURCES ON EARTH THE DIFFERENT RESOURCES ON EARTH Human beings, animals and plants need food, water, air and shelter in order to survive. The Earth has the resources needed to sustain life. The resources are air, water, soil, minerals, fossil fuels and living things. Air is needed by all living things to survive. The atmosphere is a layer of air that envelops the Earth
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Torres 1 Luis A. Torres Group #11 USC Chemistry 322b Formal Lab Report 6th November 2015 I. II. Enzymatic Resolution of 1-Phenylethanol and Diastereomer Analysis Objective/Abstract Enzymatic transesterification reaction was performed to study the resolution of diastereomers using 1H-NMR analysis. The stereo-selectivity of acylase I, an enzyme, for a 50:50 racemic mixture of 1-phenylethanol was determined. In the first of a two-step reaction, 1-phenylethanol was reacted with vinyl
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unsuitable for natural cultivation or agriculture. THREATS TO THE RANGEPLANTS. 1. Climatechange. This includes temperature change, precipitation, and evaporation .It affects the length of the growing seasons ad changes in timing of germination, phenogy, pollination. It also decreases the dry season water availability due to early runoff and higher evaporation .It also leads to reduced forage yields and quality. 2. Invasive plants species. These are the plant species that are not the native inhabitants
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about it after a friend said innocuously how similar dried potato peel was to stored skin used by plastic surgeons. He then realized potato peel did not desiccate quickly. Burns patients lose a lot of water through evaporation from the wound and potato peels prevent quick evaporation. Dr.Dattareya, an Indian-born doctor working in Holland, visited the jubilee Hospital and was amazed at the healing properties of potato peel. “He has published an article on it in a medical journal,” said Dr Narayanan
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Causes of global warming For a long time people on our Earth didn't think a lot about greenhouse gases. The situation changed when people started using more and more energy in the form of fossil fuels, like oil, gas and coal. We burn fossil fuels to power factories, run cars, produce electricity and heat houses. As fossil fuels burn they let carbon dioxide into the atmosphere. During the last few decades people have also cut down many forests. Trees use carbon dioxide when they make their own food
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