What was one effect of the decimation of the native american population as a result of the columbian exchange?

It resulted in the Europeans looking towards Africa for slave labour.

Explanation:

The decimation of the Native American population greatly reduced the available manual labour in the Americas. The Europeans being expansionist in nature required a great deal of manual labour and thus were looking for an alternative which they found in Africa. The African Slave Trade is one effect of this decimation.

the answer would be c. sediment buildup on continental slope

                                                                                -hope this -

an important point to remember about correlation is that while there is a _statistical_ relationship correlation does not equal _causation_

the first answer is: statistical

the second answer is: causation