Why is the population density of central and western Brazil much lower than other regions of the country? A.
because temperatures in those areas tend to be much lower than in other areas

B.
because the land in those regions is covered by a dense tropical rain forest

C.
because those regions are mainly used for large commercial farming operations

D.
because most of the country's oil reserves are located along its eastern coast

Answer and Explanation:

Most likely D. Because of where the Amazon Rain Forest is located, and the human settlements tend to be near the coast and that is why the majority of the country is located there.

I could be wrong tho

the rebels’ chances of victory at lexington & concord were fairly slim, given the fact that most of them very untrained and they were up against the world's greatest military force.  

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 !