(mc) the constitution divides the u. s. government into three branches that can each stop, or check, actions of the other branches. this division of power is a result of the principle of

well, there are a lot of places we get information about earth from. like science classes, websites, books, newspapers, etc.

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; humanistic;

answer; /// charles darwin;