Grassy plain with irregular patterns of rainfall
Savanna
Waterfall
Cataract
General agreement
Consensus
Group claiming a common ancestor
Lineage
Family unit consisting of parents and children
Nuclear family
Kinship ties are traced through the mother
Matrilineal
Kinship ties are traced through the father
Patrilineal
Professional storyteller
Griot
Valuable product
Commodity
Process by which fertile land becomes desert land
Desertification