Lesson 4 in a set of 4 PPT's about the countries of Northern Africa

1. Unit 6 Africa

2. Chapter 13 North Africa

3. Lesson 4 Economy and Environment

4. Core Vocabulary Words 蜗牛 snail 干旱 drought 肥料 fertilizer 自给农民 subsistence farmers 固定农业 permanent agriculture 移动农业 shifting agriculture 游牧民 nomad

5. Extension Words 〈化〉锌 Zinc 畜牧主义 pastoralism

6. What Is North Africa’s Economy Like? Nomads

7. Shifting agriculture

8. permanent agriculture

9. Pastoralism 畜牧主义

10. What Natural Resources Are Important?

11. Phosphate 磷酸盐

12. manganese < 化 > 锰

13. What environmental Problems Exist?

14. Loss of farmland