How well do you know the Earth?

Our planet truly is a natural wonder! Over 510 million square kilometers covered with oceans, deserts, mountains and cities, just waiting to be explored. How well do you know the world? Take this test and find out!

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10

How old is our planet?

• 4.5 billion years.
• 3.7 billion years
• 6.2 billion years.

apost.com