General Knowledge MCQs

16403 MCQs  (Page 1501 of 1641)

Radio, television, cell phones send information even in space through:
A. Electric signals
B. Electromagnetic waves
C. through satellite
D. None of these
Thermo flask is used to maintain:
A. Temperature
B. Pressure
C. Humidity
D. Flames
The ozone layer protects us from which rays:
A. Gamma rays
B. Infrared rays
C. U.V rays
D. None of these
Who invented the Mercury Thermometer
A. Daneil Fahrenheit
B. Pascal
C. Netwon
D. None of these