Final answer:
The parallelism in lines 77-90 of the Declaration of Independence conveys a sense of urgency and unity, highlighting the grievances against the British monarch. It also creates a rhythmic and persuasive effect, making the arguments more impactful.
Step-by-step explanation:
The effect of the parallelism in lines 77-90, where each line begins with "He has," in the Declaration of Independence is to convey a sense of urgency and unity. By repeating this phrase, Thomas Jefferson emphasizes the grievances against the British monarch and emphasizes the shared experiences and concerns of the American colonists.
This parallel structure creates a rhythmic and persuasive effect, enhancing the impact and memorability of the arguments presented.