The development of small villages into the first cities was known as
a. metropolitian revolution b. urban revolution c. cosmopolitan revolution d city revolution

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.

d

explanation:

it establishes america’s basic laws and fundamentals to its citizens.