1. I went to the fair, but I did not have a good time.
A: Simple Setence
B: Compound Sentence

simple sentence

Explanation:

this is because when the 'but' is removed the sentence still remains complete i.e the sentence makes sense

Each sentence can stand on it's own

" animal is healthy and eternally gratefully that you provided him with a warm home." and "the health and well-being of our animal friends is what is at stake here."