Nervous system includes which of these major components?
A. Brain B. Brain & Back Bone C. brain, spinal cord and neurons D. None
Everyday Science MCQs
Sound travels about ___________times faster in water than in air.
A. 2 B. 3 C. 4 D. 5 Sound travels 4.3 times faster in water than air. In water, the particles are much closer together and they can quickly transmit vibration energy and the sound wave travels over four times faster than it would in air.
speed of sound in dry air at 20 °C is___________?
A. 353 m/s B. 345 m/s C. 343 m/s D. none of them
Edward Genner discovered ‘vaccine’ in___________?
A. 1796 B. 1978 C. 1686 D. 1933 On May 14, 1796, Jenner took fluid from a cowpox blister and scratched it into the skin of James Phipps, an eight-year-old boy. A single blister rose up on the spot, but James soon recovered. On July 1, Jenner inoculated the boy again, this time with smallpox … Read more
The biggest planet in solar system is ______ and having _____ moons?
A. Uranus , Sixteen B. Jupiter, Seventy-nine C. Saturn, Sixteen D. Uranus, two According to NASA officail website: Jupiter has now 79 moons. The most of any planet in our Solar System.
Dinosaurs and many other species were extinct about ________ years ago.
A. 55 million B. 66 million C. 75 million D. 85 million
Animals use nitrogen in the form of_________?
A. Nitrogen B. Nitrates C. Nitrites D. None of Above
Which is the purest form of water?
A. Rain water B. Heavy water C. Tap water D. None of these
Chronometer is invented by________?
A. Robert Fulton B. Nikola Tesla C. Martin Cooper D. John Harrison
Wisdom teeth normally grow between the age of___________?
A. 34-40 B. 17-30 C. 45-55 D. 10-17