Which of the following statements is true? a. light years are a measurement of time. b. astronomical units are a measurement of time. c. light years are the distance light travels in one year. d. light years are measured in astronomical units (au).

Dalton developed the first model of the atom that showed the structure of the inside of an atom

Enforces the laws. a.legislativeb. executivec. judicial

1. discovered the new world balboa 2. explored the north american southwest hudson 3. his crew was the first to sail around the world vespucci 4. conquered the incas of peru cortes 5. discovered the pacific ocean columbus 6. conquered the aztecs of mexico cabot 7. discovered fishing grounds off newfoundland pizarro 8. looted spanish vessels for england drake 9. claimed the hudson river area for dutch coronado 10. priest who explored the mississippi marquette 11. man for whom the new world is named magellan