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Origin of Life
Origin of Life..
Origin of Life..Origin of Life
Origin of Life..
Origin of Life..Origin of coal and petroleum
Coal and petroleum have organic origin, being decomposed plant and animal matter buried deep inside the earth. Coal is mined like any other mineral. The chief coal producing countries in the world are China, U.S.A., U.S.S.R., U.K., Germany, Poland, Australia and India. In India, coal is ..
Common or Trivial System
This method of nomenclature was used before 1892. In this system of nomenclature, the compounds were named on the basis of their history, such as source of origin et..
Introduction
The word 'geometry' is derived from the Greek words 'geo' meaning 'earth' and 'metron', meaning 'measuring'. Geometry originated when man felt the need to measure his land. Ancient Egyptians were perhaps the first people to study geometry. Later, the Babylonians studied in a systematic wa..
Lines Angles and Triangles Introduction
Introduction - The word 'geometry' is derived from the Greek words 'geo' meaning 'earth' and 'metron', meaning 'measuring'. Geometry originated when man felt the need to measure his land. Ancient Egyptians were perhaps the first people to study geometry. Later, the Babylonians studied in ..
Symbols of Chemically Inactive Non-metals or Noble Gases
Sl. No Nobel Gas Symbol 1. Helium He 2. Neon Ne 3. Argon Ar 4. Krypton Kr 5. Xenon Xe 6. Radon Rn The names of the elements had originated from different sources in different ways. Some of them are discussed here. For example, Hydro..
Mendelian Genetics
Mendelian Genetics - The biggest name in the entire history of genetics beyond any doubt is that of Gregor Johann Mendel (1822-1884). It was Mendel, more than any other scientist, who synthesized the basic principles of heredity into a body of knowledge that has formed the very core of mo..
Radioactivity
Radioactivity - The discovery of the electron towards the end of the nineteenth century was the starting point of new avenues of research in science, which were to give physicists an insight into the structure and nature of the atoms of matter. In 1896, Henri Becquerel discovered that when a photog..
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