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🧠 Daily Knowledge
Daily General Knowledge Quiz
Saturday, 17 October 2026 · 5 questions · General Knowledge
Question 1 / 5
Which gas is most abundant in Earth’s atmosphere?
Question 2 / 5
Which vitamin is primarily produced in the skin in response to sunlight?
Question 3 / 5
Which organ primarily filters waste from the blood and forms urine?
Question 4 / 5
What is the approximate speed of light in vacuum?
Question 5 / 5