West Africa Flashcards

1
Q

all societies must address the problems that resources are limited and needs and wants are unlimited.

A

scarcity

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2
Q

because we live on one planet and cannot satisfy all of our own needs, we depend on others for mutually beneficial solutions to common problems

A

interdependence

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3
Q

a process in which people exchange goods without contacting each other directly.

A

silent barter

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4
Q

a large, hot desert in North Africa that covers about 3.5 million square miles

A

Sahara

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5
Q

a zone of semi desert, south of the Sahara, where short grasses, small bushes, and a few trees grow

A

Sahel

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6
Q

a vegetation zone of tall grasses and scattered trees, with a long rainy season

A

savanna

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7
Q

the longest river in West Africa, and a kind of trading highway in early times

A

Niger River

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