D? - slash-and-burn agriculture is best defined as the process of cutting plants and setting fires to fertilize farmland for crops. cutting steps into a hillside to make a flat surface for crops. using ash from fires to make farmland fertile for decades. clearing forests to make farmland fertile for generations.

By the end of the 1800s, there was a change in the nature of the immigrants coming to the united states. immigration from northern europe—england, ireland, germany, and scandinavia—declined, while immigration from italy, russia, and austria-hungary grew. in fact, between 1900 and 1910, more than three-fourths of all immigrants came from these three countries. unfortunately, these countries were far removed england, the home of our founders, and the immigrants who came from them had a hard time adjusting to life in their new country.

What did the u.s. want to build on the land acquired through the gadsden purchase?

How do you think entrepreneurs contribute or industry in america? describe your answer.