La economía es una ciencia social porque es responsable de analizar, describir e interpretar el comportamiento de los seres humanos en el entorno económico.
A free enterprise system is based on four key tenets which are private property rights, profit motive, equal individual rights and unrestricted competition. Property rights assure individuals that their property will not be confiscated by the state. The profit motive leads to competition which results in increased productivity
Imperialism is the intention of one country to rule over another country: for example Great Britain wanted to gain control over India - this is an example of imperialism.
For this land is definitely needed : without a land, there is no "other" land to take over.
I would say that the other necessary aspect is people: the ruling country will need some local population to rule the country, if not only to translate and help them communicate with the local population.
D. The answer is An inescapable
Pull factors can be better climate, food, resources, jobs
