📄 All MCQs
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Blood cleaned by?
💡 Explanation: Kidneys purify
Urine produced in?
💡 Explanation: Kidneys filter blood
At night plants?
💡 Explanation: Respiration
Oxidation means?
💡 Explanation: Loss of electrons
GPS stands for?
💡 Explanation: Navigation system
Comet orbits are?
💡 Explanation: Highly elliptical
Fastest planet?
💡 Explanation: Mercury fastest
Nearest planet to Earth?
💡 Explanation: Closest orbit
Which freezes last?
💡 Explanation: Salt water freezes late
Ice melts on roads using?
💡 Explanation: Lowers freezing point
Speed of light?
💡 Explanation: ~300000 km/s
Who discovered X-rays?
💡 Explanation: 1895 discovery