Notes and Study material for Exams
Education has been accepted as one major agency of socialization, and teachers and educational institutions as socializing agents. In describing education as an instrument of Social Change, three things are important: the agents of change, the content of change, and the social background of those who are sought to be changed, i.e. students. Educational institutions … Read more
Refining of ores Metallurgy Metallurgy Metallurgy is the process of obtaining metals from ores. It may be defined as the processes which are involved in the extraction of metals from their ores and then refining them for use are known as metallurgy. Steps of Metallurgy: Metals can be extracted from their ores by following processes: Enrichment of … Read more
Defence Research and Development Organization (DRDO) The DRDO was formed in 1958 following the merge of the Technical Development Establishment (TDE) of the Indian Army, the Directorate of Technical Development & Production (DTDP) and the Defence Science Organisation (DSO). DRDO laboratories conduct research in a number of fields, such as aeronautics, rockets and missiles, electronics … Read more
Environmental influences are important both at the prenatal and postnatal stages of Human Development. At the prenatal stage, when a fetus is in the mother’s womb, internal or external harmful agents, such as certain legal or illegal drugs, alcohol, lead and pollutants can harm the unborn baby’s development. The mother’s Nutrition, diseases and emotional Stress … Read more
Corrosion is defined as an attack on a material as a result of chemical, frequently electrochemical reaction, with the surrounding medium. According to this definition, the term corrosion can be applied to all materials, including non-metals. But in practice, the word corrosion is mainly used in Conjunction with metallic materials. Why do metals corrode? Apart … Read more
test, Test-Taking Strategies Test-taking strategies are a set of techniques that can be used to improve your performance on tests. There are many different test-taking strategies, and what works best for one person may not work best for another. However, there are some general tips that can help most people improve their test-taking skills. One … Read more