Question

however, sometimes the lights can be seen outside their usual ranges, usually during high sunspot activity. this causes more charged particles to be ejected from the sun; hence, there are more particle collisions in earth’s atmosphere and more frequent and spectacular lights, which can be seen farther south than usual. because sunspot activity is cyclical, auroral light displays tend to be cyclical as well. what is the significance of sunspots in this paragraph? options: they disrupt the typical cycles of auroral light. they are the reason aurora borealis can be seen. they explain some of the behavior of aurora borealis. they create a different category of aural light displays.

Explanation:

The paragraph states high sunspot activity leads to more charged particles from the sun, causing more frequent, spectacular auroras visible farther south. It also notes sunspot cycles make aurora displays cyclical. This shows sunspots explain some aurora behavior (unusual visibility, cyclical pattern). The first option is wrong because sunspots align with aurora cycles, not disrupt them. The second is incorrect because auroras can be seen without high sunspot activity (just in usual ranges). The fourth is wrong as no new category of auroras is mentioned.

Answer:

They explain some of the behavior of aurora borealis.