Why is the political stability in arabia important to the country's around the world

The earth's internal process which drives seafloor spreading is

What does the map above tell us about the endemity of typhoid fever

The caste system in india was used for what purpose? a) to ensure that all people had an adequate income b) to prevent the rich from taking too much power c) to provide social control and conformity according to one’s birth d) to draft a military capable of defending india from mongol invasion