How did physical geography and a spirit of independence influence the development of the United States?

Which of the following statements best describes what is occurring in the land surrounding the sahara desert? a desertification is increasing, and the desert is expanding. b. fewer people are trying to farm in this semiarid region. c. the desert is shrinking with the increased use of irrigation. d. increased urbanization has resulted in decreased deforestation. select the best answer from the choices provided mark this and return save and exit next submit

What is one early technological advance that shaped culture? a the use of fire b the discovery of arable land c family units. d migration

Which most likely was persia’s most valuable asset?