<prompt> Elimination of waste product from a normal person requires a minimal amount of urine of100 ml500 ml100 ml2000 ml  <response>: For excretion of solutes waste products from kidney:-Normal at a concentration of 290 mOsmL 1 litre of urine per day is required.When there is maximum concentration 1400 mOsmL Only 500 ml of urine per day is required.When there is maximum dilution 30-50 mOsmL 23.3 L of urine is required. 