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An Oxbow lake is a middle-course feature of a river which is caused water eroding the corner of a meander, resulting in an isolated corner containing a body of water. This happens as the velocity of the w...
Notice that the square root of 8 can be simplified: 4 / (sqrt(4) * sqrt(2) + 4) = 4 / (2 * sqrt(2) + 4) Divide top and bottom of the fraction by two: 2 / (sqrt(2) + 2) Rationalise the denominator: (2 / (s...
It's important to make sure you're hitting all the relevant assesment obectives in every paragraph in order to reach those top marks. For essays I always find the formula 'Point, Evidence, Analysis, Link'...
Kidney dialysis
When the concentration of urine is low, the blood will reabsorb more water from the collecting duct. This is via the action of ADH increasing the permeability of the collecting duct walls (via aquaporins)...
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