Answer: MOSTLY volcanic eruptions
True is the answer. Hope that helps
When a group of people gather for common practice, activities and interests, they are make up society. Such people start to exchange experiences and views on interests, activities and practices, they can associate, work on, improve and create a community of common interests and preferences. When society's development over common interests reaches a high level, then a highly developed society, which in this way leaves a certain significance and trace in history, is a civilization.
Federal and State agencies put into practice the laws that legislatures pass. This is important as most laws define the broad strokes of what is hoped to be accomplished. So, agencies then step in and fill in the games. They have the authority to think creatively when filling in the gaps but they are also unelected.
So, federal and state agencies exist as unelected executors of law, with all that that encompasses from filling in gaps to determining and applying sanctions.