Pretend you are a prospector and a blacksmith who wants to make a belt buckle made of iron. (Your pants keep slipping down and you have a leather belt, but no buckle.) What mineral are you looking for, and where? What are you going to do to turn your mineral into a belt buckle? (You are going to make it by yourself.) Describe every step along the way, in detail.

All of the following statements about the biosphere are true except: a. light and heat from the sun do not affect the biosphere. b. the biosphere gets resources from earth's crust, hydrosphere and atmosphere. c. like "biology", the name for the biosphere comes from the greek word for life. d. the biosphere includes all living organisms on earth's surface.

The ozone hole is at its biggest each year in the ? hemisphere in the ? season.

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.