Which group is generally held responsible for the terror attacks of september 11, 2001

 I think that the Al-Qaeda group is responsible for the terror attacks on September 11, 2001

Explanation:

The United States authorities have stated that "Osama bin Laden" and his group are responsible for the attacks. His group is called the Al-Qaeda. So, its probably the answer. Hope this helps!

every society, in order to meet the needs of it's people, has to answer three basic questions:

- what should we produce?

- how should we produce it?

- for whom should we produce it?

this questions must be answered in order to, option b, aid in production decisions.

every country can't produce everything, no matter how rich their land is. it may be a matter of technology, resources or geographical conditions. so, these three questions must be resolved in order to get the most of the production of each land.

hope this !

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.