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random motion : in this motion particles of matter moves in a zig - zag way.this was 1st observed by Robert Brown and that is why it is also known as the Brownian motion
i) particles of wind
ii) particles of water
 iii) dust particles moving in the air

i hope it helps..........
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random motion, also known as brownian motion, is the chaotic, haphazard movement of atoms and molecules. Random motion is a quality of liquid and especially gas molecules as described by the kinetic theory. The botanist robert brown first noticed this phenomenon in 1827, and Aabert einstein later continued brown’s study of the movement of water and pollen molecules. 
a fish swimming in water ,a flying butterfly,a bird flying in the sky,etc.
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sry i knew this much only
if helpful plz mark as brainliest ans
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