Final answer:
The adoption of the Declaration of Independence turned a rebellion into a fight for freedom.
Step-by-step explanation:
The immediate effect of the adoption of the Declaration of Independence by Congress was that it turned a rebellion into a fight for freedom. The declaration officially declared the American colonies' independence from Britain and served as a statement of their grievances. It unified the colonists in their resistance against British rule and inspired them to fight for their freedom.
Learn more about effects of the Declaration of Independence