What change is taking place on this graph? a decrease in supply
a decrease in demand
an increase in supply
an increase in demand

well there is an increase in the supply and a decrease in the demand i think

Explanation:

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.