General Knowledge MCQs with Answers
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Showing 10 of 71 total MCQs (page 6 of 8) · filtered by category ID 1
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.
Explanation: Water boils at 100 degrees Celsius at sea level.
Explanation: Plants absorb carbon dioxide for photosynthesis.
Explanation: The adult human body has 206 bones.
Explanation: Mitochondria produce energy (ATP) for the cell, hence called the powerhouse.
Explanation: Mars appears red due to iron oxide on its surface.