Answer the following question: You are presented with the quiz "What can be used to measure the volume of water?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "agraduated cylinder is used to measure volume of a liquid" and "most of the earth's water is liquid". So, what's the best answer to the question?

Available choices:
1). Spring Loaded Cylinder
2). Tape Measure
3). watershred
4). Earth orbiting the Sun
5). an electron lens
6). a graduated cylinder
7). an electron microscope
8). Ruler
Answer:
6).