You are presented with the question "Electron microscopes are used for seeing very small things and doing what?" and the following answer choices: - making them small - observe it - duplicate itself - making them tiny - making them invisible - rays or beams - magnifying them - major threat to health Now knowing 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, choose the best answer.
magnifying them