Long thin valleys that formed in africa as continental plates pulled apart are called

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 !

answer; ///i believe the correct answer is the empire state building;

answer; adoption agencies tend to place separated twins in similar homes;

answer; ///attempts to change more than once behavior at the same time;