A. North America
B. Asia
C. Africa
D. Australia
🧠 Explanation:
Niagara Falls is located in North America, straddling the U.S.-Canada border. This natural wonder is a key topic in geography and tourism, engaging students and travelers. Understanding its location clarifies its environmental and economic impact, relevant for studying natural landmarks. The falls’ beauty attracts those exploring travel destinations, highlighting their role in tourism and renewable energy through hydroelectric power, emphasizing their global significance.