If a mother acts upset and fearful when exposed to a particular ethnic group, it is likely that her child will associate being upset when exposed to the same ethnic group. This is an example of how prejudice is acquired through .

Operant conditioning.                                                                                              

Explanation:

Operant conditioning: In psychology, operant conditioning is described as one of the learning theories that is being proposed by B. F. Skinner. It is also referred to as "instrumental conditioning".

According to him, operant conditioning is described as a phenomenon of learning that generally occurs through punishment and rewards for specific behavior. However, it leads to create an association or connection between a particular behavior and the consequence related to that particular behavior.

In the question above, the given statement is an example of how prejudice is being acquired through operant conditioning.

the technology changed agriculture in an impacting manner since many people left the field work by a cellular or other technological appliances