Environmental Sciences, asked by navisandhu6619, 1 year ago

What was the key factor in the development of cities beginning in approximately 3500 bc?
A.More efficient agricultural practices
B.The invention of the steam engine
C.The rising literacy rate among common people
D.The industrialzatin of the feudal society

Answers

Answered by sweatlanaagrawal

0

a. more efficient agricultural practice

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