During our study of Tropical Deforestation we learned that stripping and burning large areas turns a forest into a carbon .

answer; self_ disclosure;

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; the parasympathetic nervous system;

answer; ethnocentric;