A type of agriculture where farmers grow food mainly for their own family 2019s needs, rather than for sale.

A deep crack or break in the Earth's surface, often caused by the movement of tectonic plates.

The process by which land becomes increasingly dry and loses its vegetation, often turning into a desert.

Electricity that is generated by using the power of moving water, such as from a large river or a waterfall.

Energy that is produced from the natural heat found deep inside the Earth.

A group of people, such as a large family or a collection of families, who share a common ancestor and often have a strong sense of identity together.

The deliberate killing of a large group of people, especially those of a particular ethnic group or nation.

A person who has been forced to leave their country in order to escape war, persecution, or natural disaster.

A policy or practice by which a country increases its power by gaining control over other areas of the world.

Stories, histories, and poems that are passed down from one generation to the next by word of mouth rather than by being written down.

The illegal hunting or capturing of wild animals, often against the law or on protected land.

To be made up of or composed of specific parts or members.

A payment made by one nation or ruler to another as a sign of dependence, loyalty, or for protection.

A measure of the number of people living in a specific area, usually calculated as the average number of people per square mile or kilometer.

The effect or influence that one thing has on another person, place, or situation.

Showing a great deal of variety or including many different types of people or things.