The exact position of a place on the Earth's surface

A way of looking at the human and physical patterns on Earth and their relationships to one another

The height of a land surface above the level of the sea

The variation in elevation across an area of Earth's surface

The exact position of a place on the Earth's surface

A way of looking at the human and physical patterns on Earth and their relationships to one another

The height of a land surface above the level of the sea

The variation in elevation across an area of Earth's surface

The location in relation to other places

A way of looking at the human and physical patterns on Earth and their relationships to one another

The height of a land surface above the level of the sea

The variation in elevation across an area of Earth's surface

The location in relation to other places

A way of looking at the human and physical patterns on Earth and their relationships to one another

The height of a land surface above the level of the sea

The variation in elevation across an area of Earth's surface

The location in relation to other places

A way of looking at the human and physical patterns on Earth and their relationships to one another

The height of a land surface above the level of the sea

Weather patterns typical for an area over a long period of time

System of government in which a small group holds power

System of government in which leaders rule with consent of the citizens

A form of autocracy with a hereditary king or queen exercising supreme power

System of government in which one person rules with unlimited power and authority

System of government in which a small group holds power

System of government in which leaders rule with consent of the citizens

A form of autocracy with a hereditary king or queen exercising supreme power

System of government in which one person rules with unlimited power and authority

System of government in which a small group holds power

System of government in which leaders rule with consent of the citizens

A form of autocracy with a hereditary king or queen exercising supreme power

System of government in which one person rules with unlimited power and authority

System of government in which a small group holds power

System of government in which leaders rule with consent of the citizens

System of government in which of those who rule are regarded as divinely inspired

System of government in which one person rules with unlimited power and authority

System of government in which a small group holds power

System of government in which leaders rule with consent of the citizens

System of government in which of those who rule are regarded as divinely inspired

System of government in which one person rules with unlimited power and authority

System of government in which a small group holds power

System of government in which leaders rule with consent of the citizens

System of government in which of those who rule are regarded as divinely inspired

Way of life of a group of people who share similar culture traits, including beliefs, customs, or a place of origin

A boundary in the eastern United States where the higher land of the Piedmont drops to the lower Atlantic Coastal Plain

A resource formed in the Earth by plant and animal remains

A smaller river or stream that feeds into a larger river

A concentrated region of manufacturing industries in the northeastern and midwestern United States

A boundary in the eastern United States where the higher land of the Piedmont drops to the lower Atlantic Coastal Plain

A resource formed in the Earth by plant and animal remains

A smaller river or stream that feeds into a larger river

A concentrated region of manufacturing industries in the northeastern and midwestern United States

A boundary in the eastern United States where the higher land of the Piedmont drops to the lower Atlantic Coastal Plain

A resource formed in the Earth by plant and animal remains

A smaller river or stream that feeds into a larger river

A concentrated region of manufacturing industries in the northeastern and midwestern United States

A boundary in the eastern United States where the higher land of the Piedmont drops to the lower Atlantic Coastal Plain

A resource formed in the Earth by plant and animal remains

A smaller river or stream that feeds into a larger river

A concentrated region of manufacturing industries in the northeastern and midwestern United States

A boundary in the eastern United States where the higher land of the Piedmont drops to the lower Atlantic Coastal Plain

A resource formed in the Earth by plant and animal remains

Economy that emphasizes services and technology rather than industry and manufacturing

A large population concentration made up of several large and many smaller cities such as the area between Boston and Washington, D.C.

A boundary in the eastern United States where the higher land of the Piedmont drops to the lower Atlantic Coastal Plain

A resource formed in the Earth by plant and animal remains

Economy that emphasizes services and technology rather than industry and manufacturing

A large population concentration made up of several large and many smaller cities such as the area between Boston and Washington, D.C.

The sum of factors within a population that reduce the ability of an environment to support the population, therefore resulting in migration of population decline

The practice and business of recreational travel based on concern for the environment

Planting young trees or seeds on lands where trees have been cut or destroyed

Biological diversity in an environment as indicated by the numbers of different species of plants and animals

The sum of factors within a population that reduce the ability of an environment to support the population, therefore resulting in migration of population decline

The practice and business of recreational travel based on concern for the environment

Planting young trees or seeds on lands where trees have been cut or destroyed

Biological diversity in an environment as indicated by the numbers of different species of plants and animals

The sum of factors within a population that reduce the ability of an environment to support the population, therefore resulting in migration of population decline

The practice and business of recreational travel based on concern for the environment

Planting young trees or seeds on lands where trees have been cut or destroyed

Local form of a language used in a particular place or by a certain group

The sum of factors within a population that reduce the ability of an environment to support the population, therefore resulting in migration of population decline

The practice and business of recreational travel based on concern for the environment

Planting young trees or seeds on lands where trees have been cut or destroyed

Local form of a language used in a particular place or by a certain group

The sum of factors within a population that reduce the ability of an environment to support the population, therefore resulting in migration of population decline

The practice and business of recreational travel based on concern for the environment

Planting young trees or seeds on lands where trees have been cut or destroyed

Local form of a language used in a particular place or by a certain group

The sum of factors within a population that reduce the ability of an environment to support the population, therefore resulting in migration of population decline

The practice and business of recreational travel based on concern for the environment

Planting young trees or seeds on lands where trees have been cut or destroyed

The cultivation or growth of a single crop over a wide area for a consecutive number of years

A form of energy conversion that captures heat energy from within Earth

A non-indigenous species or non-native species that threatens ecosystems, habitats, or other species

Relating to or characteristic of a continent

A process by which glaciers form and spread

A form of energy conversion that captures heat energy from within Earth

A non-indigenous species or non-native species that threatens ecosystems, habitats, or other species

Relating to or characteristic of a continent

A process by which glaciers form and spread

A form of energy conversion that captures heat energy from within Earth

A non-indigenous species or non-native species that threatens ecosystems, habitats, or other species

Relating to or characteristic of a continent

A process by which glaciers form and spread

A form of energy conversion that captures heat energy from within Earth

A non-indigenous species or non-native species that threatens ecosystems, habitats, or other species

Relating to or characteristic of a continent

A process by which glaciers form and spread

A form of energy conversion that captures heat energy from within Earth

A non-indigenous species or non-native species that threatens ecosystems, habitats, or other species

Relating to or characteristic of a continent

The practice and business of recreational travel based on concern for the environment

A form of energy conversion that captures heat energy from within Earth

A non-indigenous species or non-native species that threatens ecosystems, habitats, or other species

Relating to or characteristic of a continent

An industry engaged in agriculture on a large scale, sometimes including the manufacture and distribution of farm supplies

A large concentration made up of several large and many smaller cities, such as the area between Boston and Washington, D.C.

A way of looking at the human and physical patterns on Earth and their relationships to one another

The study of the physical features of the Earth and its atmosphere, and of human activity as it affects and is affected by these, including the distribution of populations and resources, land use, and industries

An industry engaged in agriculture on a large scale, sometimes including the manufacture and distribution of farm supplies

Trade

Religion

Money

Power