861. Which of the following Rays are more Penetrating?
✅ C. Gamma rays
Everyday Science MCQs – Page 44
862. Candela is the basic unit of_______?
✅ B. luminous intensity
863. What is it called when the Earth is closest to the sun ________?
✅ A. Perihelion
864. Which layer of the atmosphere reflects radio waves back to the earth’s surface?
✅ D. Ionosphere
865. Segmented Worms take breath through:____?
✅ C. Moist Skin
866. Who invented the Hot Air Balloon?
✅ A. Montgolfier
867. The average acceleration caused by gravity per second is_______?
✅ A. 32 feet
868. It is observed that the total pressure exerted by air on the man of average size is around 14.7 lb wt. per square inch. But the man feels quite comfortable,. It is because of_____?
✅ B. An equal and opposite pressure acts from inside
869. The SI standard of time is based on________?
✅ E. none of these
870. The instrument that measures temperature, pressure, and humidity at various altitudes in the atmosphere ______?
✅ A. Radiosonde
871. Study of energy production in living bodies is called____?
✅ C. Bioenergetics
872. Substance whose atoms can be split are known as _____ materials.
✅ A. Fissionable
873. Which of the following organisms releases molecular oxygen into water?
✅ C. Phytoplankton
874. What is Melioidosis?
✅ B. Infectious disease
875. The contraction and expansion of the movement of the walls of the food pipe after entering the slightly digested food is known as ______ movement
✅ C. Peristaltic
876. What are the names of the two stars in the Big Dipper used to locate Polaris?
✅ A. The Pointer Stars
877. In the manufacture of banaspati ghee the gas used is _____?
✅ A. Hydrogen
878. Sunlight is a Great Source of _______?
✅ A. vitamin D
879. In blood, the percentage of water is______?
✅ C. 90%
880. What are considered the building blocks of matter?
✅ D. Atoms