Which of these protects the earth from harmful radiation when found in the stratosphere

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.

no because it could make the world a terrible place to live in.

what is the question you are trying to ask?

answer; the government can clearly justify the restriction;