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

Which situation is the best example of regulation in an economic system? a retail business just opened a new store in a community close to its original location. a small clothing shop slashed it prices to attract customers from a larger department store nearby. a farmers’ market has offered a special deal to customers from a nearby yoga school. a state agency has been created to monitor the production and distribution of sports drinks.