But some people are certain that natural materials are strong and suitable for making houses. These natural materials are environmentally friendly too. Elora Hardy is one of those people who used natural resources to make her house. She used bamboo sticks to make her entire houses. Her working processes faced challenging difficulties from times to times but she succeeded at
dissolve into the water. The hardness is made up of two parts: temporary (carbonate) and permanent (non-carbonate) hardness. When water is boiled, calcium carbonate scale can form, which can deposit on things like kettle elements. The scale will not stick to kettles that have a plastic polypropylene lining but will float on the surface. The permanent hardness that comprises calcium and magnesium sulphate does not go on to form scale when heated or boiled. concept of complexometry is a form of volumetric
Acknowledgements I would like to express my honest gratefulness to my supervisor Dr Oudunaike of the Department of Information and communication technology, Tshwane University of Technology for his encouragement and support throughout the duration of the project. Her careful eye for element, proficient advice, supreme knowledge, patience and caring attitude provided me with a balance of independence and guidance. I would also like to thank all people I interviewed for their positive feedback and