The "age of exploration" began in the 15th century when Portugal and Spain started to expand their commercial interests and trade routes across the oceans. What are two things that may have motivated explorers to navigate the world by sea during this period?

Name one type of data that h-r diagrams do not show.

Uncle tom's cabin started out as a series of articles printed in the national era, a newspaper.

Although china’s total economic output, measured by gross domestic product (gdp), is third largest in the world, it is considered a developing nation. what is most likely the most important factor for this designation? a. china’s government spends money on things that do not benefit human development. b. china has a large population, so its gdp per person is only modest. c. china has a strong economy but weak literacy and school attendance rates. d. china’s high rates of disease offset the country's economic gains.