Answer:
3000 mL
Explanation: The metric system is pretty simple actually. 1 liter = 1000 ml, 1 ml = 1000 micro liters and so one. Additionally, 1 kiloliter = 1000 L. Everything is a multiple of 10 or in this case 1000. All you have to do is 3 x 1000 to get the number in ml in 3 L which is 3000.
