Why did europeans in the caribbean colonies turn to africans to replace the native peoples as slaves?
a.
they believed that africans were physically superior.
b.
the preferred africans as people, and considered them to be culturally more advanced that the native peoples of the caribbean.
c.
the native populations of the caribbean had been decimated by european diseases.
d.
african slaves were less expensive than caribbean slaves.

C.  The native populations of the Caribbean had been decimated by European diseases.

Explanation:

The Europeans tried to enslave the Americans initially. However, the native people did not have the genetic immunities to conquer the diseases, and this led to the catastrophic mortality of the population in the natives of America. Because of this reason, they were not fit for slavery.

The Africans, on the contrary, had the needed immunities, and the Europeans discovered this in the 1500s during the trade in the Atlantic region, and they, therefore, developed rapidly and filled the demands of required slavery.

polar areas, such as antarctica or the south pole.

hola:

ef0: daños leves. algunas tejas caídas y otras pequeñas piezas de los tejados arrancadas, algunos daños en canaletas, ramas de árboles rotas y algunos árboles poco profundos arrancados. los tornados que no causan daños visibles (por ejemplo aquellos que se producen en campos abiertos) se valoran siempre como de ef0.

ef1: daños moderados. tejados seriamente despedazados, caravanas y casetas volcadas o seriamente dañadas, perdida de puertas exteriores y ventanas y otros cristales rotos.

ef5: daños increíbles. las casas fuertes pueden quedar arrasadas hasta los cimientos, las estructuras de hormigón armado dañadas críticamente, los edificios altos sufren graves deformaciones estructurales. devastaciones increíbles.

y según esto creo que puedes sacar tus conclusiones. y la verdad la escala ef10 si no se decirte por que no la eh visto o mejor dicho estudiado. espero que te sirva. suerte.