Sample,pH Worms only A,8.34 Worms only B,8.49 Worms only C,8.58 Plants only A,8.16 Plants only B,7.98 Plants only C,7.9 Worms & plants A,7.37 Worms & plants B,8.77 Worms & plants C,8.34 Blank A,8.22 Blank B,8.18 Blank C,7.98 Blank D,8.35