A. Greenland
B. France
C. Germany
D. China
🧠 Explanation:
China built the world’s largest air purifier, a 100-meter tower in Xi’an, to combat pollution. For environmental or engineering students, this highlights innovative pollution control, making it a key topic for studying air quality, environmental technology, and urban sustainability. The purifier reduces smog, improving public health. Understanding its design reveals advancements in environmental engineering. It’s essential for analyzing urban pollution solutions, green technology, and public health strategies. Studying China’s air purifier offers insights into tackling global air quality challenges, crucial for environmental science, urban planning, and sustainable development in rapidly industrializing regions worldwide.
