World General Knowledge Challenge
Test your knowledge about geography, history, science, and culture from around the globe
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Quiz Questions & Answers
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Question 1: Which of these elements is most abundant in Earth's atmosphere?
Carbon dioxide
Argon
Oxygen
Nitrogen
Question 2: Which ocean is the largest by surface area?
Atlantic Ocean
Arctic Ocean
Indian Ocean
Pacific Ocean
Question 3: Which of these inventions came first?
Printing Press
Telephone
Television
Radio
Question 4: What is the hardest natural substance on Earth?
Gold
Diamond
Iron
Platinum
Question 5: Which ancient wonder of the world still exists today?
Hanging Gardens of Babylon
Great Pyramid of Giza
Colossus of Rhodes
Lighthouse of Alexandria
Question 6: What is the main function of white blood cells?
Clot blood
Produce energy
Carry oxygen
Fight infection
Question 7: Which continent has the most countries?
Europe
Asia
South America
Africa
Question 8: What is the most widely spoken language in the world by total number of speakers?
English
Hindi
Mandarin Chinese
Spanish
Question 9: Which planet has the most moons?
Neptune
Saturn
Uranus
Jupiter
Question 10: What percentage of the human body is water?
75-80%
60-65%
45-55%
85-90%
Question 11: Which civilization invented the concept of zero?
Ancient Indians
Chinese
Greeks
Egyptians
Question 12: What is the fastest land animal?
Leopard
Lion
Cheetah
Gazelle
Question 13: Which country has the longest coastline?
Russia
Australia
Canada
Indonesia
Question 14: What percentage of the ocean floor has been explored by humans?
25%
50%
5%
75%
Question 15: Which organ can regenerate itself?
Liver
Kidney
Brain
Heart