The preposition in question is "on", and its purpose is to show you where the dog chewed. You can remove the preposition to form the sentence "The brown dog chewed the rawhide bone." You can also rearrange it to find the preposition, "on the rawhide bone, the dog chewed" in what is commonly known as the Yoda technique.
Answer:
I would say Heaven is a place where I can live out my wildest dreams. It is a place where I can have as many dogs as I want with no worries about affording their care or having them get sick. It is a place where money does not matter whatsoever and everyone can live happily and peacefully.
Explanation: