81. The field of specialization of famous Muslim scientist Abu Usman Aljahiz was?
✅ A. Zoology
Author: Aurangzeb – Page 5
82. Name the branch of science which deals with the study of sound and sound waves?
✅ A. Acoustics
83. Circadian Rhythm refers to ________?
✅ C. Human body cycles
84. Fuse wire is made of________?
✅ B. 63% tin and 37% lead
85. A temporary magnet should be made from __?
✅ C. Iron
86. How many eyes does a worm have?
✅ D. None
87. The Planet which revolves slowly around the Sun is_____?
✅ D. Neptune
88. Moon light reaches to earth in______seconds?
✅ A. 1.3 seconds
89. The gases which are used by drivers as an artificial atmosphere are helium and________?
✅
90. The atmosphere of moon consists of____?
✅ C. 60% Nitrogen, 40%inert gases