Question

Brownian motion is due to:

a.The random fluctuation of the energy content of the environment.
b.The random movement of pollen granules suspended in water.
c.Thermal noise.
d.The random fluctuation of the energy content of the environment and thermal noise.

Answer 1

b

Step-by-step explanation:

Brownian motion is the random movement of particles in a fluid due to their collisions with other atoms or molecules. ... Brownian motion takes its name from the Scottish botanist Robert Brown, who observed pollen grains moving randomly in water. He described the motion in 1827 but was unable to explain it.