What people were kidnaped in the blackbirding

Blackbirding, the 19th- and early 20th-century practice of enslaving (often by force and deception) South Pacific islanders on the cotton and sugar plantations of Queensland, Australia (as well as those of the Fiji and Samoan islands). The kidnapped islanders were known collectively as Kanakas.

(d) rivers.

explanation:

civilizations developed around rivers because their waters provided places to hunt and fish. also, as the rivers flooded, the lands around them became fertile. this allowed them to support farming. this is especially true of the nile river, which flooded the same time each year.