Nervous system includes which of these major components? April 15, 2025 by admin A. Brain B. Brain & Back Bone C. brain, spinal cord and neurons D. None
Sound travels about ___________times faster in water than in air. April 15, 2025 by admin A. 2 B. 3 C. 4 D. 5Sound travels 4.3 times faster in water than air….
speed of sound in dry air at 20 °C is___________? April 15, 2025 by admin A. 353 m/s B. 345 m/s C. 343 m/s D. none of them
Edward Genner discovered ‘vaccine’ in___________? April 15, 2025 by admin A. 1796 B. 1978 C. 1686 D. 1933On May 14, 1796, Jenner took fluid from a…
The biggest planet in solar system is ______ and having _____ moons? April 15, 2025 by admin A. Uranus , Sixteen B. Jupiter, Seventy-nine C. Saturn, Sixteen D. Uranus, twoAccording to NASA officail website: Jupiter has now…
Dinosaurs and many other species were extinct about ________ years ago. April 15, 2025 by admin A. 55 million B. 66 million C. 75 million D. 85 million
Animals use nitrogen in the form of_________? April 15, 2025 by admin A. Nitrogen B. Nitrates C. Nitrites D. None of Above
Which is the purest form of water? April 15, 2025 by admin A. Rain water B. Heavy water C. Tap water D. None of these
Chronometer is invented by________? April 15, 2025 by admin A. Robert Fulton B. Nikola Tesla C. Martin Cooper D. John Harrison
Wisdom teeth normally grow between the age of___________? April 15, 2025 by admin A. 34-40 B. 17-30 C. 45-55 D. 10-17
