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The cells composing the potato tissue contain fluid, or cytoplasm. This contains dissolved salts and these ions attract water molecules; cations, or positive ions, attract the partially negatively charged...

Re-arrange (1) : y = 2x + 4 Square both sides: y^2 = 4x^2 + 16 Substitute (1) into (2) and simplify: 2x^2 + 9x + 4 = 0 Factorise the equation: (2x+1)(x+4) = 0 Solve for x: x = -1/2 and x = -4 Substitute t...

In English, we have 'I am going' + infinitive, for example, I am going to eat. This can describe an event in the near future. Then, we have the term "will" for talking about a future that is mor...

The Second World War broke out in September 1939 following Adolf Hitler's invasion of Poland. Fascist Italy and Nazi Germany were allies, and had been since the Pact of Steel in May 1939. As a result, Ita...

Your essay plan should not take up too much of your time, but at the same time it is essential you have a plan. It will provide for a more organised essay and will serve as an outline of a structure you c...