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Water drops are spherical because of ?

  • A.Density
  • B.Polarity
  • C.Viscosity
  • D.Surface tension

Answer: D

Water drops are spherical because of surface tension.

Molecules at the surface are pulled inwards by their neighbours, since there are none above them, and the liquid therefore contracts to the shape with the least surface area for a given volume. For a fixed volume that shape is a sphere.

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