1-Compare and contrast factual causation and legal causation.Why must the defendant be both the factual and legal/proximate cause of the harm in order for him to have liability.When will intervening variables cut off liabiliy?Please give examples.

2-what are the four types of mens rea found in the Model Penal Code.Define each and give an example.

3-Under what circumstances can an omission to act be deemedthe actusreus of a crime.Please provide examples