Go to your social studies book read the then throughly then ask your parents for some help if you still don’t understand
Not gonna answer fully as if I were answering the question, but here are some ideas that might help.
1. I think it can do a bit of both. I’d like to say it does more good but I can see how it could create tension still.
2. For this one change needs to be talked about. This is probably a bad comparison but would the fridge ever get cleaned if you never told the person with that job to do so?
3. Up to you, I get where the question is going but still unclearish
If congress has already passes it then the president cannot but if congress hasn't he can.