Daily GK Quiz Game 854

Test # 854 [04-May-2026]

Fact
Laser stands for light amplification by stimulated emission of radiation. Developed 1950s 1960s. .. More >>

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Fact
Radium-224 is the most poisonous element in the world. This naturally occurring isotope is 17,000 times more poisonous than plutonium-239. .. More >>