Why can light microscopes produce images in their natural color, while scanning electron and transmission electron microscopes only produce grayscale images?

This is because in order to see something under a microscope, the object must have a very thin cross-section. ... Electron microscopes are a different ball game altogether. They produce grayscale images of the specimen, i.e., the magnified images are black and white.

the answer for this question would be d. glaciers

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.