What is the name of the world's longest wall built across northern China?
A
Great Wall of China
B
Silk Road
C
Grand Canal
D
Dragon Wall
Correct Answer: Option A — Great Wall of China
Explanation:
The Great Wall of China is the world's longest wall stretching over 21000 kilometres across northern China built to protect Chinese territor...
The Great Wall of China is the world's longest wall stretching over 21000 kilometres across northern China built to protect Chinese territory from invasions and now a major tourist attraction.