You are presented with the question "graduation markings are used to measure the what of a liquid" and the following answer choices: 
- viscocity
 - size
 - flow
 - volume
 - density
 - smell
 - Decibels
 - tube

Now knowing that agraduated cylinder is used to measure volume of a liquid and for test cylinders without graduation marks, a manual calibration method has to be used, choose the best answer.


 

    volume     