What occurred to deter further invasion of egypt after the hyksos from syria invaded and took control during the middle kingdom?

answer; ///i believe that the correct answer is refrigerants,(like r12) and aerosol

- 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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