Seamount

An underwater volcanic mountain.

Seawork

A structure used to control the sea’s destructive impact on human life.

Sedimentary rock

Rock formed from sediments deposited by running water, wind, or wave action either in water bodies or on land and which have been consolidated into rock.

Segmentary kinship system

The organization of kinship groups in concentric units of membership, lineage, clan, and tribe among Middle Eastern pastoral nomads.

Seismograph

A device that measures the size of the waves created by an earthquake.

Senegal

Location: West Africa Official name: Republic of Senegal Formation (date of independence / date current borders were established): 1960 / 1960 Capital city: Dakar Population: 12.9 million / 174 people per sq mile (67 people per sq km) Total land area: 75,749 square miles (196,190 square km) Language(s) spoken: Wolof, Pulaar, Serer, Diola, Mandinka, Malinké, … Read more

Serbia

Location: Southeast Europe Official name: Republic of Serbia Formation (date of independence / date current borders were established): 2006 / 2008 Capital city: Belgrade Population: 9.9 million / 331 people per sq mile (128 people per sq km) Total land area: 29,905 square miles (77,453 square km) Language(s) spoken: Serbian (official language), Hungarian (Magyar) Main … Read more

Serengeti

An East Africa area contains some of the best grasslands in the world and many grazing animals.

Service industry

Any economic activity that produces a service rather than a product.

Service sector

The labor sector is made up of employees in retail trade and personal services.

Settler colonization

The historical pattern by which Europeans sought to create new or “neo-Europes” abroad.

Sex ratio

Sex ratio includes the number of males for each female in five age groups – at birth, under 15 years, 15-64 years, 65 years and over, and the total population.

Seychelles

Location: Indian Ocean Official name: Republic of Seychelles Formation (date of independence / date current borders were established): 1976 / 1976 Capital city: Victoria Population: 89,188 / 858 people per sq mile (330 people per sq km) Total land area: 176 square miles (455 square km) Language(s) spoken: French Creole (official language), English (official language), … Read more