The Human World

_ is a measure of the number of people living in an area, expressed as persons per square mile or square kilometers.

_ is a common cause of population change.

Land is more expensive in areas with higher _.

_ is the set of beliefs, values, and practices a group of people have in common. This includes language, religion, clothes, music, and foods.

_ are activities or behaviors in which people often take part, such as language and popular sports.

A _ is an area in which people have many shared culture traits, such as language, religion, or lifestyle.

An _ is a group of people who often share cultural traits like language, foods, or religion.

Countries or areas with many ethnic groups are _.

_ is the spread of culture traits from one part of the world to another.

Geographers believe that all societies have developed _ - specific features that meet basic needs.