Answer :
approximately, 32 fluid ounces= 1liter, but we will be exact for this problem,
64fl oz= 1.9 liters
700ml= 0.7 l
the adult needs to drink a little more....
1.9-0.7=1.2 liters
64fl oz= 1.9 liters
700ml= 0.7 l
the adult needs to drink a little more....
1.9-0.7=1.2 liters