Practice MCQs
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Showing 10 of 276 total MCQs (page 26 of 28)
Explanation: The Nile River is traditionally considered the longest river in the world.
Explanation: Vatican City is the smallest country in the world by area.
Explanation: Asia is the largest continent both by area and population.
Explanation: Japan is known as the Land of the Rising Sun.
Explanation: The skin is the largest organ of the human body.
Explanation: Diamond is the hardest known natural substance.
Explanation: Albert Einstein developed the theory of relativity.
Explanation: Light travels at approximately 300,000 kilometers per second in a vacuum.
Explanation: Nitrogen makes up about 78% of Earth's atmosphere.