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iPhones and Samsung phones can be considered close substitutes, i.e. if the price of one increases, consumers may wish to switch to the cheaper alternative. This means the demand for the substitute will r...

The reactivity of group 1 metals increases as we go down the periodic table because as we go down the group the electrons are further away from the nulceus as the number of shells increase and therefore t...

As with writing a letter in English, it is important to adopt the correct register and tone for the person you are writing to.

To open your letter, use one of the following options, picking the bes...

Hitler rose to power for a variety of reasons. Firstly, he was a charismatic leader and a great orator. He appealed to the German people following WW1. However, his rise to power was only enabled by event...

The subjunctive is often described a a mood, rather than a tense and is something English speakers sometimes struggle with as we no longer have an equivelant in English. The subjunctive should be used in ...