You are presented with the quiz "Electron microscopes are used for seeing very small things and doing what?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "an electron microscope is used for seeing very small objects by making them appear bigger" and "electron microscopes allow scientists to magnify objects hundreds of thousands of times". 

So, what's the best answer to the question?


 

       magnifying them    