It would be logos I believe bc Logos or the appeal to logic, means to convince an audience by use of logic or reason. And it’s trying to convince you if you ever pollute that you should be thrown in prison
I would do process of elimination. Let's first look at logos. It doesn't really follow any logic. Let's next look at ethos. This one is a bit more promising, as you can argue that the government, or prison is an authority, but I would go with pathos, the appeal to emotion. There are two sides here; one is arguing that people who pollute should go to prison, and since people don't want to go to prison, it provokes an emotional response. Furthermore, prisons have negative connotations, so it could evoke a negative response within the reader that links prisons with pollution.