341. Tooth decay is caused by?
✅ A. Sugar
Everyday Science MCQs – Page 18
342. What do you understand by disease “Insomnia”?
✅ D. Inability to sleep
343. The Reason for a Swimming Pool to appear Less Deep than the actual depth is_____?
✅ B. Refraction
344. The lenses are used for the correction of:_______?
✅ C. Both A & B
345. Which of the following explains the reason why there is no total eclipse of the sun?
✅ D. Area of the sun covered by the moon
346. The blue colour of clear sky is due to_____?
✅ D. Dispersion of light
347. The study Of GLANDS is called?
✅ C. Endocrinology
348. Which of the following is the study of micro- organisms, mostly viruses and single called organisms such as bacteria, yeasts and protozoa ?
✅ B. Microbiology
349. At night, Plants intake _____ and release _____?
✅ B. Oxygen - Carbon dioxide
350. Which one of the following is not a unit of distance?
✅ D. Foot Candle
351. The olfactory nerves affect what sense in brain?
✅ B. Smell
352. The fruits without seed, like banana, are called________?
✅ C. Parthenocarpic fruits
353. _____ gas is released when coal is burnes in ln lack of Oxygen?
✅ D. Carbon Monoxide
354. Christian Friedrich Schönbein’ discovery is______?
✅ B. Ozone
355. In a very low temperature which from the following will freeze at last?
✅ C. Sea water
356. The speed of light is _____?
✅ A. 300,000 km/s
357. What is the third most common gas found in the air we breathe ___ ?
✅ D. Argon
358. The normal range of the number of white blood cells in a microliter of blood is between ____ ?
✅ A. 4,500 and 10,000
359. Oasis is associated with______?
✅ A. Desert
360. The cow’s milk contains how much amount of water in terms of percentage?
✅ D. 80%