I think you mean nullification. It was the idea that individual states could nullify federal laws if they felt like it.
Um I don’t think so but I’m not sure
Answer:
What is the main idea of the passage? To save birds, communication towers have begun using blinking lights. Birds are attracted to the steady red lights on communication tower.
Explanation:
I think is d, because of how obvious or clear it is when you open a window or when sun shnines