What did northerners argue?

make flash cards, or have a 'study date' with your friends or something! always works for me! : d

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.

answer; /// blank (1) fall; blank(2) rise;