The answer is typically A. But really, any of these can be chosen, as many modern couples seem to want to delay everything until they've settled into their careers. But children is definitely the biggest one.
<span>C) The Tigris and Euphrates Rivers provide fertile land for farming.</span>
Answer:
The changes in agriculture significantly altered global populations. The most significant immediate effects of the Columbian exchange were the cultural exchanges and the transfer of people (both free and enslaved) between continents.
Explanation:
The Columbian Exchange greatly affected almost every society on earth, bringing destructive diseases that depopulated many cultures, and also circulating a wide variety of new crops and livestock that, in the long term, increased rather than diminished the world human population.
