Plz help meee i did not post the pic so here now

An unsuccessful attempt at cooperation among the colonies was

What prompted president monroe and secretary of state adams to issue the monroe doctrine?

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.