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Diffusion is the movement of particles from a high concentration to a low concentration. This process does not require energy. An...

To solve these simulataneous equations we need to use substitution:If 2x + y = 13 then y = 13 - 2xTherefore 3x - y = 12 can be rewritten as 3x - (13 - 2x) = 12We can expa...

Real politik is the political approach of self-sufficiency. Decisions on public policy, when approached from a position of real politik, are not afforded time for sympathy or compassion. Rather, real p...

The best way to tackle this is to practice strictly with time before the exam. I understand your frustration with the time limit especially when you know a lot. Doing loads of essay plans is very impor...

In order to write a good paragraph for an essay you should use the PEACE paragraph. This is writing the point you want to make to answer the question and explaining th...