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What is eutrophication?

Eutrophication is a result of nitrogen rich compounds leeching from farm land fertilizer/manure or other pollution methods to the river water ecosystem. The all of a sudden nitrogen rich environment in the r...
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Answered by Festus S. • Biology tutor
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In d block chemistry, Copper and Chromium electron configuration do not follow the electron filling trend , why is this?

Copper has a [Ar]4s1 4d10 whereas Chromium has a [Ar]4s14d5 electron configuration as this d shell configuration of either half full d shell (5 electrons) with only one electron per orbital or fully full d s...
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Answered by Festus S. • Chemistry tutor
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How do I solve simultaneous equations given a linear and a quadratic equation?

Let's use the following example: y - x = 3 y^2 + x^2 = 29 . Firstly, the second equation is the quadratic equation because it has a y-squared term. The first equation is linear because it doesn't have any sq...
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Answered by Erica H. • Maths tutor
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What is the key to writing a successful personal statement?

Your personal statement provides a global picture of you as a student. It helps the admissions board evaluate how much you have learned from each of your experiences and how driven you are about the field yo...
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What are the features of a dynamic equilibrium?

Forward and backward reactions occur at equal rates Concentration of reactants and products remains constant
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