Which best describes the Columbian Exchange? A. the movement of people from the Old World to the New World B. the goods Columbus moved between the New World and Old World C. the trade of goods between the New World and Old World D. the inventions brought from the Old World to the New World

How do comedies differ from tragedies

Which chinese invention is used to measur the strength of earthquakeswhich chinese invention is used to measure the strength of earthquakes

Which statement is correct? the speed of the light ray is the same in air and medium a. the speed of the light ray is the same in air and medium b. medium a and medium b have different densities because light refracts at different angles. medium a and medium b have the same density because the light ray strikes both at the same angle.