Joey decided it was time to go to college because all of the jobs he used to have on the farm were being mechanized. the word underlined in the sentence above is best defined as a. used to increase human capabilities or make people’s lives easier b. changed to allow only people with college educations to participate c. downsized and sent overseas d. conducted by machines

Where was oil production at its highest in the 1980s and still remains important to the russian economy? central asia the ural mountains russian siberia the caucasus region

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.

What is the thickest layer of earth called?