Units 18, 19, and 21 Vocabulary

The total number of people in any given area as compared to one square unit of land.

The average number of minutes a commuter spends traveling to work on a typical day.

An area in which treaties or agreements between nations, military powers or contending groups forbid military installations, activities, or personnel.

Typically incorporate ductility (the ability of a building to bend, sway, and deform without collapsing) within the structure and its structural members.

The physical separation of members of a population.

The number of persons per unit of agricultural land.

A sloping piece of land that has had flat areas like steps built on it.

Ocean waves triggered by: Large earthquakes that occur near or under the ocean. Volcanic eruptions. Submarine landslides.

Understanding how people acquire their cultures and culture's important role in personal identities, life ways, and mental and physical health of individuals and communities.

The heritage of tangible and intangible heritage assets of a group or society that is inherited from past generations.