The greatest extension of the frontier of food production in the 1800s ocurred in what areas?
A.The open lands of south america, north america, and austrailia.
B.Rice paddies of china, japan, and vietnam.
C.The sub-saharan areas of africa.
D.The steppes in asia.
I Chose A or B what would you choose?
3 answers
Which answer are you going to put on your test?
Right.
thank you that's what the book talks about also.