What new world product had been responsible for the most deaths of afro-eurasians since its introduced to the old world

In 1933 the 21st amendment was added to the u.s. constitution, allowing for the manfacture, transportation, and sale of alacoholic beverages in the united states. why was this amendment needed?

According to the earth science reference tables, during which geologic time period were the continents of north america,south america, and africa closest together?

People make choices about how to use resources.