Chapter 20
Chapter 20 & 21
100

a body of water that was once a major source of freshwater but is now depleted by drought and over-demand

Lake Chad

100

A decade-olds conflict in Sudan that ended in 2005 was based on a dispute over

a Muslim government versus a secular government.

200

a plan that calls for a wall of trees to divide the semi-arid Sahel from the Sahara

Great Green Wall

200

One of the legacies of the Transition Zone’s colonial past is...

its countries’ political boundaries.

300

the practice of passing down stories from generation to generation by word of mouth

oral tradition

300

Which action would produce the best results toward combating desertification?

adopting agricultural methods that put less stress on the land

400

to be headed by a male family member

patriarchal

500

What is the topography of the Sahel?

mainly flat with a series of plateaus