Aristotle .

believed the Earth was flat
suggested the Earth's shape was changing slowly over time
used calculations to suggest the Earth was not a perfect sphere
used eclipse shadows to show the Earth's round shape

Which statement best explains distribution of natural resources? people tend to settle in locations that have the resources they need for survival. some countries have resources that others lack, so trade between countries becomes vital. fossil fuels come from areas that have mountains and other areas that manufacture synthetic gas. areas with natural resources provide a higher standard of living and better quality of life.

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.

Countries in this region are trying to achieve development. a. attainable c. sustainable b. suspendable d. intangible