Skin is _____ thick?
Skin is _____ thick?
A. 2mm
B. 2cm
C. 3mm
D. 3cm
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An instrument to detect the purity of milk is____________?
An instrument to detect the purity of milk is____________?
A. Lactometer
B. Hygrometer
C. Manometer
D. SonometerAn extremely small piece of silicon on which integrated circuits are implicated is called __________________?
An extremely small piece of silicon on which integrated circuits are implicated is called __________________?
A. Card Reader
B. Hollerith Code
C. Feed
D. ChipA device that converts mechanical energy into electric energy is called_______?
A device that converts mechanical energy into electric energy is called_______?A. Motor.
B. Transformer.
C. Coil.
D. Generator.When a ray of sunlight enters a dark room , its straight path become visible because of dust particles hanging in the air. It is because light is _________?
When a ray of sunlight enters a dark room , its straight path become visible because of dust particles hanging in the air. It is because light is _________?
A. Visible
B. Transparent
C. Invisible
D. opaque
E. None of theseSpring tides occur on new moon and full moon days because on these days_____________?
Spring tides occur on new moon and full moon days because on these days_____________?
A. Sun, moon and earth are in a straight line
B. Sun and earth are at right angles
C. Sun and moon are at right angles
D. Earth and moon are at right anglesOzone layer prevents ______________ radiation from entering the atmosphere?
Ozone layer prevents ______________ radiation from entering the atmosphere?A. Infra-red
B. Ultraviolet
C. X-rays
D. Gamma rays
E. None of these