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Capacitors are made up of two plates (& so the symbol) which you can imagine as 'boxes' of opposite polarity and are seperated with insulation. As capacitors charge, the negative box keeps filling with e...

A pronoun is a word that is used in place of a noun, often to avoid repetition. If we are replacing the object of a sentence with a pronoun, we will be using either the direct object pronoun (DOP) or indirec...

Thomas Malthus is the author of the Malthusian theory; the view that suggests that the global population is increasing exponentially , while global resource production and extraction are only increasing arit...

A mole is a unit for amount of substance. This unit was created because we needed a common unit which could be used to convert from eg. number of atoms/molecules to grams or concentration to grams.

The easiest way to explain this would be to use an examplar question. For example: Ben is given a sequence of numbers and is told to find the median, lower quartile and upper quartile. 1,4,5,6,8,9,11,12,14,1...