Which country detonated its first nuclear device underground?
Correct answer: D. North Korea
- A. USSR
- B. China
- C. USA
- D. North Korea
Explanation
North Korea’s first nuclear test, conducted in 2006, was an underground detonation. Its test site was at Punggye-ri, unlike the famous US Trinity test, which was conducted above ground.
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Inventions and Discoveries covers the people, dates, principles and practical uses behind developments such as the wheel, printing press, telephone, electricity, radio, computer, internet, vaccines and space technology. It distinguishes an invention, which creates a device or process, from a discovery, which identifies something already present in nature.
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