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📄 All MCQs — Page 22
253–264 of 322
Q253 🔬 Everyday Science NTS PPSC
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Blood cleaned by?
💡 Explanation: Kidneys purify
Q254 🔬 Everyday Science NTS PPSC
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Urine produced in?
💡 Explanation: Kidneys filter blood
Q255 🔬 Everyday Science NTS PPSC
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At night plants?
💡 Explanation: Respiration
Q256 🔬 Everyday Science NTS PPSC
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Oxidation means?
💡 Explanation: Loss of electrons
Q257 🔬 Everyday Science NTS PPSC
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GPS stands for?
💡 Explanation: Navigation system
Q258 🔬 Everyday Science NTS PPSC
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Comet orbits are?
💡 Explanation: Highly elliptical
Q259 🔬 Everyday Science NTS PPSC
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Fastest planet?
💡 Explanation: Mercury fastest
Q260 🔬 Everyday Science NTS PPSC
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Nearest planet to Earth?
💡 Explanation: Closest orbit
Q261 🔬 Everyday Science NTS PPSC
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Which freezes last?
💡 Explanation: Salt water freezes late
Q262 🔬 Everyday Science NTS PPSC
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Ice melts on roads using?
💡 Explanation: Lowers freezing point
Q263 🔬 Everyday Science NTS PPSC
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Speed of light?
💡 Explanation: ~300000 km/s
Q264 🔬 Everyday Science NTS PPSC
🔗
Who discovered X-rays?
💡 Explanation: 1895 discovery