Earth is a system comprised of interacting processes.
true or false?

Given: circle a externally tangent to circle b. how many possible common tangents to circles a and b can exist? 2 3 4

Compared with the land in the highlands, the lowlands region of england a) rockier and more difficult for farmingb) the center of business and industryc)richer in coal reservesd)covered by more fertile farmland d) covered by more fertile farmland

Although romania possesses broad plains with fertile soils, its people a) work in citiesb) are impoverishedc) have emigrated to other nationsd) are entrepreneurs