The Great Wall of China

What was the main purpose of the Great Wall of China?

• To control trade
  
  

• To protect against invasions

• 
  For ceremonies
  
  

• For tourism

Which emperor unified China and ordered the construction of the Great Wall?

• Emperor Taizong
• Han Wudi
• Kublai Khan
• Qin Shi Huang

Approximately how long is the Great Wall of China?

• 8.000 kilometers

• 16.000 kilometers

• 18.000 kilometers

• over 20.000 kilometers

What materials were used in the original construction of the Great Wall?

• Plastic and rubber
• Concrete and steel
• Earth, wood, bricks, and stones
• Glass and aluminum

Can the Great Wall be seen from the Moon with the naked eye?

• No, the Great Wall cannot be seen from the Moon with the naked eye.
• The Great Wall is visible from space with binoculars.
• Astronauts have reported seeing the Great Wall from the Moon.
• The Great Wall can be seen from low Earth orbit.