Most abundant color in Earth is_________?
Most abundant color in Earth is_________?
A. Blue
B. Green
C. Brown
D. Black
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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__________?
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__________?A. An equal and opposite pressure acts from inside
B. of the height of a man
C. of gravity
D. Earth pulls the man upward
E. None of thesePotassium nitrate is used in__________?
Potassium nitrate is used in__________?A. Medicine
B. Fertilizer
C. Salt
D. GlassThe percentage of blood cells in the Blood of human body is _________?
The percentage of blood cells in the Blood of human body is _________?A. 40%
B. 45%
C. 50%
D. 60%SONAR is based on the principle of___________?
SONAR is based on the principle of___________?A. Echo
B. reverberation
C. resonance
D. None of theseSONAR stands for Sound Navigation and Ranging. SONAR works on the principle of reflection (echo) of sound waves from the object. It stands for Sound Navigation and Ranging.
The gas used in a refrigerator to cool water is___________?
The gas used in a refrigerator to cool water is___________?A. Nitrogen
B. Carbon dioxide
C. Methane
D. TetrafluoroethaneTetrafluoroethane: It is one of the commonly used refrigerant gases which you can find in almost all the present time refrigerators. This gas is condensed effectively so that it can cool down the surroundings of the machine without causing the problem of ozone depletion.
Granite is a____________?
Granite is a____________?A. Metamorphic rock
B. Igneous rock
C. Sedimentry rock
D. None of these