Physics
The motion of the wheels of a bullock-cart while moving on the road is an example of

Translatory motion only
Translatory and rotatory motion
Oscillatory and rotatory motion
Oscillatory and translatory motion

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Physics
Specific gravity is defined as the ratio of

Density of the substance to the density of water at 4°C
Density of water at 4°C to the density of the substance
Density of the substance to the density of water
Density of the substance to the density of water at 0°C

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