experiment to prove that optimum temperature is needed for germination with out the conditions
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Procedure: Take two conical flask with a cork and mark them A and B respectively. Place a wet cotton wool in each flask with some soaked Pea seeds. Pyrogallic acid absorbs oxygen so a test tube of in flask B in such a way that the cemical dosent drop in the flask. In flask A hang a test tube of plain water.
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