Multiple choice general knowledge science & technology

  1. Rain drops are spherical because of

  1. a)viscosity

  2. b)air resistance

  3. c)surface tension

  4. d)atmospheric pressure
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Rain drops are spherical because of surface tension, which minimizes the surface area for a given volume. Surface tension acts equally in all directions, pulling the water into a shape with the smallest surface area - a sphere. Viscosity, air resistance, and atmospheric pressure affect falling behavior but not the spherical shape.

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