Greece's many hills were important to early Greek city-states because they: A. stopped the Persian Empire from attacking Greece.
B. gave Greek farmers a place to graze their animals.
C. allowed Greece to trade with other countries.
D. forced Greek leaders to form a united government.

B. gave Greek farmers a place to graze their animals

Explanation:

- tobacco.

- "rolfe reacted to consumer demand by importing seed from the west indies and cultivating the plant in the jamestown colony. those tobacco seeds became the seeds of a huge economic empire.the tobacco economy rapidly began to shape the society and development of the colony. growing tobacco takes its toil on the soil."

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answer; i believe the two groups were irish immigrants and chinese immigrants;