How do I separate my bar chart from others?

I have attempted to work on one of the projects here with Replit. I had followed its instruction but added bar chart just to play around.

The work will be saved as a png. Is it possible to separate the bar chart result from others? If yes, how?

Below is my code:

https://replit.com/@Jade-Ruby-LRuby/boilerplate-sea-level-predictor-4#sea_level_predictor.py

Please expand on this, I don’t understand the question