Final answer:
Niagara Falls is comprised of three separate waterfalls: the Horseshoe Falls, the American Falls, and the Bridal Veil Falls.
Step-by-step explanation:
Niagara Falls is composed of three separate waterfalls: the Horseshoe Falls (also known as the Canadian Falls), the American Falls, and the much smaller Bridal Veil Falls. All three are located on the border between the United States and Canada. The Horseshoe Falls are the most expansive and powerful, followed by the American Falls, with the Bridal Veil Falls being the smallest. These waterfalls are not only a natural wonder but also a significant source of hydroelectric power, contributing to the electrical grid of both countries.