More than half of all europeans are bilingual. this is most likely because a. european laws require people to be bilingual b. europeans must speak english in addition to their native language to find work c. european countries share many borders with each other, and speaking more than one language is common because of the close economic and cultural ties in border regions d. most children come from mixed ethnic families

Humans have built artificial levees along the mississippi river to protect themselves and their property from floods. however, these structures also modify inland and coastal regions by disrupting the natural flow of sediment. artificial levees along the mississippi river a. reduce the amount of sediment deposited on floodplains and increase the amount of sediment deposited at the river's mouth. b. increase the amount of sediment deposited on floodplains and decrease the amount of sediment deposited at the river's mouth. c. increase the amount of sediment deposited on floodplains and at the river's mouth. d. decrease the amount of sediment deposited on floodplains and at the river's mouth.