4561. The number of electrons of a neutral atom is automatically known if one knows the?
✅ B. Atomic number
Everyday Science MCQs – Page 229
4562. A man can survive without food for at least?
✅ B. One month
4563. A slow-running pendulum clock can be speeded up by_____?
✅ C. Reducing the length of the rod
4564. What is the date when day and night are equal?
✅ C. March 20 and September 23
4565. The only living cells in the body without blood supply is______?
✅ C. Cornea
4566. The Sun is a _____?
✅ B. Star
4567. The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is ___ ?
✅ C. Helium
4568. The earth’s atmosphere is divided into layers based on the vertical profile of _____?
✅ A. Air temperature
4569. Water is a highly effective coolant for a car engine because ____?
✅ A. Water has very high specific heat capacity
4570. The absolute value of charge on electron was determined by ___ ?
✅ D. Robert Millikan
4571. Which of the following is not a waterborne disease?
✅ D. Influenza
4572. What is the mass of the Sun?
✅ A. 1.98x10 Power 30 Kg
4573. How many times the sun is bigger than the size of the earth?
✅ D. 109 times
4574. Earth is closest to the sun every year in early ____, when it’s winter for the Northern Hemisphere. We’re farthest away from the sun in early ________, during our Northern Hemisphere summer.
✅ B. January - July
4575. The turning effect of force is called____?
✅ C. Torque
4576. Which metallic element is liquid at room temperature?
✅ D. Mercury
4577. Mostly which gases found of the planet Jupiter?
✅ C. Hydrogen and Helium
4578. Detergents dissolved in water help in cleaning clothes by____?
✅ C. Reducing the surface tension of water
4579. How many numbers of chromosomes in Pea plant?
✅ A. 14
4580. Nuclear radiation is emitted by those elements whose:
✅ D. nuclei are unstable