what do you mean by the active participation of people why is it importance in the development of a country​

Explanation:

Active participation of people refers to those who contribute and engage themselves for their own well being.

                                It importance in the development of a country​ because taking control of their care and support helps an individual build their identity and self-esteem and to become independent learner.

i believe the answer is:   psychological  experiment

in this experiment, wilhelm wundt became the first person that implement scientific method in analyzing the pyschological phenomenon.

due to this result, wilhelm wundt also able to make psychology to be acknowledged as a separate scientific field from biology.

i believe the answer is: returns on investments, no wages

people who belong in upper class society would most likely get there by obtaining multiple source of income, which a certain percentage of ownership for businesses. since most of them are job creator, they would most likely get their money from profit, not wages.