form_title= Parchment Paper form_header= Purchase parchment paper for your office. Do you want to put your logo on the paper?v Do you want the paper delivered?*= () Yes () No How many boxes of paper do you need?*= {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, More than 10}
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Pig's bladder , Parchment paper , copper sulphate solution etc are semipermeable to water.
Fold the paper in half.
Paper used for math is called grapging paper!!
two pieces of paper
graph