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Science & Technology - Questions and Answers

Inventions, space, and basic science concepts.

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1. Which gas is most abundant in the Earth's atmosphere?
A. Oxygen
B. Carbon Dioxide
C. Nitrogen
D. Hydrogen
Explanation: Nitrogen makes up about 78% of the Earth's atmosphere.
2. Who discovered Penicillin?
A. Marie Curie
B. Alexander Fleming
C. Louis Pasteur
D. Isaac Newton
Explanation: Alexander Fleming discovered the first antibiotic, Penicillin, in 1928.