What feature is common to all microscopes, and how is this feature related in the word "microscope"?

All microscopes allow visualization of samples that are too small to be viewed by the naked eye. Microscopes let scientists make observations of microscopic objects.

Explanation:

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

: )

there is none because earth is stationary and flat.