<span>The impact of human expansion on the voyages of exploration on environment, trade networks, and global interconnection includes :
</span>• Agriculture and agricultural approaches has cause the rise in population. • The <span>expansion</span> of cities and kingdoms, independent upon surroundings and more distant resources. • The trade and conversion of supplies,and finished goods, disease,encroaching species,as well as ideas, technologies, and religions.
Climate change and drought may have triggered both the initial dispersal of Indo-European speakers, and the migration of Indo-Europeans from the steppes in south central Asia and India.
