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Laws of Conservation of Matter, Constant Proportion and Multiple Proportion

Early history of chemistry was marked by incorrect theories about what occurred during chemical reactions. It had long been observed, for instance, that when wood burnt, the resulting ash was very light and fluffy. These types of observations then led to the conclusion that ‘something’, which German chemists, Becher and Stahl called phlogiston, was lost…

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Major Climatic Types

This classification is more or less a synthesis of all the climatic classifications designed so far. The types are: i. Hot climatesii. Temperate climatesiii. Cold climatesiv. Desert climates Hot ClimatesGrouped under the hot climates are the equatorial and tropical hot climates. This group is a zone which goes beyond the tropics. Much consists of ocean,…

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