Can we say that the motion of a Brownian particle is a thermal motion, analogous to the motion of molecules?

We can say that the motion of a Brownian particle is the thermal motion of particles suspended in a liquid or gas.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.