What was one notable invention during the song dynasty

During its history, france has been a kingdom, an empire, a colonial power and a republic. true or false

This map is depicting the 16th century route of what explorer

Which course of action did president carter propose in order to solve this problem for the next generation? a. contract with foreign nations to build wind turbines b. reduce federal spending on solar cell energy research c. drill fewer offshore wells to conserve marine life d. develop alternative energy sources