What was the Columbian Exchange? A. The transfer of plants, animals, people, and diseases between hemispheres. B. The conversion of native peoples to Christianity. C. The discovery of the Americas by Christopher Columbus. D. The transfer of gold, spices, and gems between continents.

A. The transfer of plants, animals, people, and diseases between hemispheres.

Explanation:

Christopher Columbus introduced horses, sugar plants, and disease to the New World, while facilitating the introduction of New World commodities like sugar, tobacco, chocolate, and potatoes to the Old World. The process by which commodities, people, and diseases crossed the Atlantic

polling is a process and the outcome is not involved in the process itself.

the outcome, which is an unfavorable rating for a particular candidate is not affected by the mechanical process of polling.

it rather depends on the number of people voting in favor of the candidate.

this is an outcome of people's preferences.

thing is, i'm afraid, you can't.

the most you can do is log out and never log in again.