Final answer:
Aggression is any attack involving human interaction with the intention to cause harm or pain. It can manifest as physical violence or non-physical forms such as harassment or bullying through electronic means. Aggression can be motivated by anger or by the desire to achieve a goal.
Step-by-step explanation:
Any attack involving human interaction of some kind can be defined as aggression. Aggression is behavior that is intended to cause harm or pain to another person. It may involve physical violence, such as fighting or causing injuries, or non-physical forms of aggression, such as harassment or bullying through electronic means like email, chat rooms, or text messaging. Hostile aggression is motivated by anger with the intent to cause pain, while instrumental aggression is motivated by achieving a goal and may not involve intent to cause pain.