421. What is the name of the branch of the science that studies the ocean?
✅ B. Oceanography
Everyday Science MCQs – Page 22
422. The photo-receptors in the eye are present in______?
✅ A. Retina
423. On which disease did Robert Koch work?
✅ B. Tuberculosis
424. Human bone does not contain____?
✅ C. Boron
425. Leukemia is a disease of the______?
✅ A. Blood
426. Echo is a ______ of sound?
✅ B. Reflection
427. A Little inhalation is done through___?
✅ A. pipes and cigars
428. Which of the following is not an enzyme?
✅ A. Secretin
429. Max Planck received the noble prize in Physics in 1918 for his discovery of ?
✅ A. energy quanta
430. By which process does the smell of cooking spread to all the rooms in a house?
✅ A. Diffusion
431. Which of the following is not a Fat-soluble vitamin?
✅ A. Vitamin B6
432. The oldest barrage on the river Indus at Sukkur was built in_____?
✅ B. 1932
433. Albert Einstein was a_______?
✅ B. Physicist
434. Earth rotates the sun in______?
✅ B. 23 hours 56 min 4 sec
435. Which of the following bonds are weakest in nature?
✅ D. Hydrogen bond
436. Most important effect of the moon on earth is that it______?
✅ D. Effects tides of the ocean
437. Silicon is an example of ____?
✅ A. Semiconductor
438. In the electricity meter the digit to the extreme right is______?
✅ C. 1/10th of the unit
439. How many layers of Atmosphere?
✅ D. 5
440. How many chambers are in the human heart ?
✅ C. 4