
* The same five pollutants was tried for at all sites * The people of colour change for each was the same Manipulated variables * divers(prenominal) sites * Different people doing the tests * Time limit for each pollutant * example time for each gas was contrasting * Strokes for gas was different as well Responded variables * submerging of gas * Movement of colour in tube Method of Data collection * aboriginal sites was chosen * Spots to do test was chosen * and one tes t of each was done because tubes were expens! ive * jibe both devastations of a reinvigorated detection tube victimization the tip-breaker on the side of the pump * install the tube pointer towards the pump * Select the volume desire and ordain the loss dust on the plunger with the red dot on the pump shaft. * Pull the handle sharply until it locks (50-100ml). cargo dress for the sampling time indicated on the data sheet to have the air to be drawn through the tube. (2mins) * Flow is everlasting(a) when the end on flow...If you want to get a honest essay, order it on our website: OrderCustomPaper.com
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