Fact 1: Agraduated cylinder is used to measure volume of a liquid.

Fact 2: Water is also a liquid.

Given the two facts above, answer the question "What can graduated cylinders be used for?" with the following options: 
- A transportation fuel
 - reusing materials
 - igniting fuel and oxidiser
 - Electrical energy
 - measuring volume of water
 - Burning fuel and air
 - heat production
 - it keeps an organism warm


 

     measuring volume of water    