Describing Light-Years Use the drop-down menus to complete the statements. The y of light is the rate at which light travels through empty space, or about 300,000 km per second. A light-year is a measurement of The distance between stars is measured in light-years rather than in miles or kilometers because the distance between stars )

How did the construction of the erie canal improve transportation in the united states in the 1820s? a. the canal connected the great lakes to the mississippi river. b. the canal connected the great lakes to the ohio river. c. the canal connected the atlantic and pacific oceans. d. the canal connected the great lakes to the atlantic ocean.