Question

What is an erratic movement of small solid particles suspended in a fluid called?
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Answer 1

Answer:

particles please mark me as brainliest

Answer 2

Answer:

Brownian movement The continuous random movement of microscopic solid particles (of about 1 micrometre in diameter) when suspended in a fluid medium. First observed by Robert Brown in 1827 when studying pollen grains in water, it was originally thought to be the manifestation of some vital force.