Question

q6. the best tool to get the volume of water is *
graduated cylinder
balance
ruler
calculator
beaker
test tube

Explanation:

A graduated cylinder is specifically designed for accurately measuring the volume of liquids like water. A balance measures mass, a ruler measures length, a calculator is for mathematical operations, a beaker can hold liquids but is less accurate for volume - measurement than a graduated cylinder, and a test - tube is mainly for holding small amounts of substances for reactions etc., not for accurate volume measurement of liquids.

Answer:

graduated cylinder