1. Why is oil so important to Saudi Arabia? 2. Why does Saudi Arabia make so much money from oil?

3. What is specialization? How does Saudi Arabia accomplish that?

4. What would happen if Saudi Arabia ran out of oil or someone else took over the country?

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; people have no objective standard by which to judge themselves;