What would likely cause an inscription on a marble gravestone to become more difficult to read over time?

Chemical weathering would cause the inscription on a marble gravestone to become harder and harder to read overtime. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

Ithink the answer is true

We are not able to see the stars. light prevents our seeing the stars. i hope it kinda : )