The answer is In the refrigerator because an adverb phrase describes how where why when and In the refrigerator is describing "where".
Because he thought it would be a good idea
Explanation:
A witness would be someone that has experienced something at first hand, having saw something from a different perspective. An ally is someone who is acquainted with you, or someone you could trust. A witness cannot be an ally if you are against their side in some form or way. A witness can be an ally if it is your best friend or someone you trust to prove you innocent.
Basically, a witness is a neutral term that describes someone that saw something. While an ally refers to mutually acceptable.
In the Sioux creation story, the Creating Power flood the world because the creatures in it were bad and were destroying it. Then It put all of the living creatures on it again and humans as well, and told them that if they made the world bad and ugly once again, It would destroy that world too.
This creation story resembles the Christian flood myth, a story that the Europeans brought with them to the New World.