Eutrophication: View as single page - OpenLearn
Eutrophication can occur in any aquatic system (freshwater or marine), and the term is also used to describe the process whereby terrestrial vegetation is affected by nutrient-enriched soil …
1.5 Experiment 2: Cucumbers and osmosis - OpenLearn
This free course, Basic science: understanding experiments, introduces you to science-based skills through simple and exciting physics, chemistry and biology experiments.
Labour Delivery and Care Module: 3. Care of the Woman in …
5 days ago · 10 IU (international units) of the injectable drug called oxytocin, or 600 µg (microgram) tablets of misoprostol. These drugs are used for the prevention of post-partum …
Why study a free course on OpenLearn? | OpenLearn - Open …
Our courses have been proven to increase confidence and develop the skills needed to enter Higher Education and succeed with learning. You can choose an OpenLearn course from a …
Eutrophication: 3.2.2 Domestic detergents - OpenLearn
3.2.2 Domestic detergents. Domestic detergents are a major source of phosphorus in sewage effluents. Phosphates are used as a ‘builder’ in washing powders to enhance the efficiency of …
Everyday maths 1: Session 2: 4.1 | OpenLearn - Open University
You are cooking for a large party. The recipe you are using calls for 600 ml of milk to make enough for four people. How many litres of milk will you need to make ten times as much? …
A brief history of Science | OpenLearn - Open University
Aug 30, 2019 · The 19th century saw some of the great names of science: people like the chemist John Dalton, who developed the atomic theory of matter, Michael Faraday and James Maxwell …
2.3.1 Half-life - OpenLearn
Imagine you were given 1200 atoms of uranium (in reality it would be a much larger number). After one half-life, half the uranium atoms will have decayed into thorium, so you will only have …
Upset forging | OpenLearn - Open University
Upset forging. Updated Tuesday, 21 November 2017. A heading tool or ram is positioned perpendicular to the cross sectioned end face of a rod or bar gripped in a die. On application …
The most negative is d3, so x3 becomes basic. Iteration 1, Step (c) If x3 = θ while x1 = x2 = 0, we have θ+ x4 = 25 240θ + x5 = 4000 30θ + x6 = 1000 =. x7 = 200 giving x4 = 25 − θ, x5 = 4000 …