In latin american history, the pre-columbian era refers to the time
a. before the arrival of european explorers and colonistsb. of increased immigration to the new worldc. also known as the era of independenced. after the fall of the aztec empire

The correct answer is option A.

In Latin American history, the pre-Columbian era refers to the time before the arrival of European explorers and colonists.

The word is directly related to Christopher Columbus who commanded the expedition that led to the European discovery of the New World in 1492.

There were three precolumbian cultures that predominated in America and they were the Aztecs, the Mayas, and the Incas.

Primarily the pre-Hispanic civilizations were agricultural, where the cultivation of corn became the main food.

Regarding religious ideology of all pre-Hispanic civilizations, there is the existence of several gods, usually cruel, related to nature and who demanded human sacrifices.

A.) Before the arrival of European Explorers and Colonists.

the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.

the answer is d.index