Write a journal as if you were a seaman on either Magellan's or Drake's circumnavigation of the world.

Bis your correct answer

Advances in learning and technology made long ocean voyages possible

The changes to agriculture in the united states since 1900 is that increased mechanization has increased food production, thereby increasing the need for labor. there has been an increased need for higher speeds of food production due the fact that the population in the united states continues to rise.