Final answer:
The appropriate topic for a two- to three-page informative essay is the biogeography of the Arctic, which focuses on the distribution of species and ecosystems in the region.
Step-by-step explanation:
The topic that is neither too narrow nor too broad for a two- to three-page informative essay is the biogeography of the Arctic. Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time. It focuses on understanding the patterns and processes that shape the biodiversity of different regions.
For your essay, you can discuss the unique characteristics of the Arctic region, such as its harsh climate, limited vegetation, and the impact of climate change on its biodiversity. You can also explore the adaptations of Arctic species and the challenges they face in this environment. By choosing the topic of biogeography, you will have enough content to write a two- to three-page essay without it being too narrow or too broad.