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Eutrophication is an enrichment of water by nutrient salts that causes structural changes to the ecosystem such as: increased production of algae and aquatic plants (algal blooms), depletion of fish speci...

This is one of the main questions asked by Spanish learners. "Ser" is used to talk about permanent or lasting attributes; in other words, how and who you are (identity and intri...

The clue for an outstanding essay is its Funnel structure. With a widespread introduction, followed by a deeper body (formed by specific study cases) and ending with a widespread conclusion, which should ...

On the whole, Othello’s character and his tragic development are consistent with the Greek notions of the tragic hero. The first act of the play sees Othello in a high-ranking social sphere, a well-respec...

To make x the subject we want to try to get all the x's on one side of the equals sign! Firstly to get rid of the fraction we multiply both sides by 2, giving 3x+y= 2(x+z). We then expand the brackets on ...