A. 20,000 KM
B. 12500 KM
C. 21196 KM
D. None of these
Brief facts about this MCQs:
The Greta Wall of China is one of the wonders of the world. This wall was built almost in 220 B.C.E by Qin Shi Huang, also called the First Emperor of united China. The purpose of this wall was protection against many gangs/groups from Eurasian States. This wall was built in northern borders of China.