Final answer:
The Declaration of Independence resulted in the formal separation of the colonies from Great Britain, leading to the establishment of the United States of America.
Step-by-step explanation:
One of the effects of the Declaration of Independence was that the colonies formally separated from Great Britain and became the United States of America. This historic document, adopted on July 4, 1776, declared the 13 American colonies independent of British rule and established the United States as a sovereign nation.
Learn more about Effects of the Declaration of Independence