Required by all life on Earth, to survive.

A ruler who has almost absolute powe.

Any material in nature that people use and value.

A place of prayer for Muslims.

Devotion and loyalty to a country.

A place where a plant or animal lives.

A shape on the planet's surface.

A region close to the equator.

A large landmass that is part of the Earth's crust.

The spread of cultural traits from one region to another.

The practice of building an empire by claiming lands.

The belief that one's own culture or ethnic group is superior.

A group of people who share a common culture and ancestry.

A large community of living organisms, that are both plants and animals.

The set of beliefs, values, and practices that a group of people have in common.

An interconnected community of interacting organisms and their physical environment.

Blended African-Arab culture that had become common in East Africa.

An organized pattern of belief and behavior that focuses on meeting people's basic needs.

A society that includes a variety of cultures in the same area.

An activity or behavior in which people often take part.