Pls hel[p me
which of the following was an effect of the discovery of gold and silver on western development?

a. it caused a sharp decrease in the population of eastern cities
b. there was no longer a need for the railroad
c. the value of gold and silver decreased
d. it contributed to the opening of the western frontier.

It is D. It contrubted to the opening of the western frontier.

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 !