81. Which synthetic fibre is known as artificial Silk?
✅ A. Rayon
Everyday Science MCQs – Page 5
82. A six feet tall lady wants to see her full image in a plane mirror . The minimum length of the mirror will be ?
✅ D. 3 feet
83. Permanent hardness of water due to sulphate of metals can be destroyed by the use of ___ ?
✅ B. Zeolites
84. One of the following ways of expressing the concentration of a solution does not depend on temperature. It is_____?
✅ A. Molality
85. White bloods cells are also known as___?
✅ A. Leucocytes
86. The scientific study of insects is known as __?
✅ A. Entomology
87. P Waves are also said to be _____ waves?
✅ B. Push-pull
88. Lunar eclipse occurs on_____?
✅
89. Oil rises up to wick in a lamp because________?
✅ D. Capillary action phenomenon
90. What is the scientific name of flying fish ?
✅ B. Exocoetidae
91. Who was the first to measure the earth’s radius
✅ D. Eratosthenes
92. Total volume of blood in a normal adult human being is
✅ B. 5-6 liters
93. The large plates of solar pannels are painted?
✅ D. Black
94. Stripes on each side of “Grévy’s Zebra” is about____?
✅ C. 80+
95. How many calories are there in 1 gram of carbohydrate?
✅ C. 4
96. The deepest place on earth is _______?
✅ A. Mariana Trench
97. Which of the following acid is used in Ink?
✅ D. Tannic
98. The human brain uses_____ percent of the total oxygen and blood in the body?
✅ B. 20
99. Bromine is a_________?
✅ A. red-brown liquid
100. The ozone layer is at height of___kilometers from the surface of the Earth?
✅ A. 20 to 30