Crash Course World History: Indus Valley
1.According to John Greene, all of the following are symptoms of civilization except:
A. food surpluses
B. cities
C. writing
D. language
2. 5,000 years ago almost all civilizations were associated with rivers.
A. True
B. False
3. When rivers flood they deposit nutrient rich soil called ______________.
A. clay
B. sand
C. silt
D. dirt
