Answer:
Size and structure of microbes.
Explanation:
The scientific question about size and structure of microbes could be answered with the help of a microscope because microscope help us to see very small objects such as bacteria and viruses etc which can not be seen without the help of microscope. With the help of microscope we can measure the size and see the structure of different microbes. So the questions about size and structure could be answered with the help of microscope.
