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An atom consists of three sub-atomic components; protons, neutrons and electrons. The nucleus contains protons and neutrons. Electrons orbit the nucleus. Protons have a positive charge, electrons have a nega...

Often, students think that the structure of their essay depends on the question and is therefore impossible to predict — this isn't true! If you have a solid idea of the composing elements of a good structur...

Alpha, beta, gamma

In a river channel, erosion is the process that wears away the river bed and banks . If you were to look at the sides and bottom of a river channel beneath the water, we would not see smooth and even surface...

Body temperature must be maintained around 37°C as the enzymes in our body work best at this temperature. The thermoregulatory centre in the brain contains receptors that detect the temperature of blood, as ...