Answer:
A pulley is a circular disc having groove along it's circumference.
wheel and axle is an arrangement of two co-axial cylinders with different radii in which one rotates to give the rotation to another
Answer:
Mirror neurons
Explanation:
The mirror neurons is a type of neuron that is triggered when the one person acts and observes the same thing from the other person. This behavior which the neuron mirrors of the person that copies the behavior of the other person. In the current situation, Sasha's daughter reflects the phenomenon of Neuron mirroring because she is copying the silly face behavior of her mother.
youll need to show the diagrams :)