1) England was looking at the settlement of colonies as a way of fulfilling its desire to sell more goods and resources to other countries than it bought. ... At the same time, colonies could be markets for England's manufactured goods. England knew that establishing colonies was an expensive and risky business
2) Colonization ruptured many ecosystems, bringing in new organisms while eliminating others. The Europeans brought many diseases with them.
3) Since the Europeans brought many diseases with them, it decimated Native American populations. Colonists and Native Americans alike looked to new plants as possible medicinal resources. The Native Americans didn't like the Colonists becasue of this.
