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17  Rajiv investigates the solubility of some substances using the internet.

               (a) He finds a line graph about the solubility of salt.








                                   solubility
                                   of salt















                                                           temperature


                   Rajiv makes a conclusion.

                   Complete his conclusion.

                   As the temperature                                                   the solubility of salt


                                                .                                                          [1]




































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