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There are many specific purposes that require the use of either 'ser' or 'estar', but in the simplest terms there is one key difference. 'Ser' refers to 'being' in the sense of existence, describing what ...

Atoms and ions are both made up of proton's and neutrons in the nucleus with electrons orbiting around. The difference is atom's have equal number of proton's and electrons while ions have more or less el...

In short Aerobic is with oxygen - think aero=air, therefore oxygen is present. This process also produces more energy and takes place on mitochondria only producing carbon dioxide and water from glucose a...

First, try to focus on your dream course and think of why specifically you want to study it. Share your passion about the subject with the reader! But before you start actually writing your personal state...

Pull factors are positive factors that attracts migrants to go to the certain destination. For example you may consider going abroad because of higher standards of living, lower costs, better healthcare, ...