2-2

1. Old Kingdom
2. pharaohs
3. Re
4. nature
5. death
6. pharaohs
7. embalming
8. illnesses
9. tomb
10. pyramids
11. north
12. mathematics
13. 10
14. Great Pyramid
15. Cairo
16. Khufu
17. 500

2-1

I. Nile River
               A. longest
                  1. 4,000
                  2. Blue Nile, White Nile
               B. protected
                  1. cataracts
                  2. delta
II. Floods
               A. securely
                  1. fertile
                  2. irrigation
               B. developed
                 1. papyrus
                 2. hieroglyphics
                 3. artisans
III one
             A. Narmer
             B. social groups