Final answer:
The worldview family that does not believe in anything supernatural is comprised of atheists and agnostics, who either disbelieve in or deem the existence of a deity unknowable. This secular perspective devoid of supernatural belief nonetheless includes ethical and moral social contributions.
Step-by-step explanation:
The worldview family that does not believe in anything supernatural includes those who identify as atheists or agnostics. Atheists do not believe in a divine being or entity, whereas agnostics hold that ultimate reality, such as the existence of God, is unknowable.
This perspective is purely secular and does not subscribe to the belief in supernatural elements that characterize the beliefs of most religions. Despite not adhering to belief in the supernatural, it's important to acknowledge that nonbelievers can and do have moral codes and contribute positively to society, as evidenced by many humanitarians and Nobel Peace Prize winners over the centuries who have been atheists or agnostics.