De facto segregation in the 1970s can be defined as segregation by circumstance. for instance, if a school served a certain community and that community was predominantly african american, the schools would be segregated, not by law, but by circumstance.

Segregation by racial.

Explanation:

There are several types of segregations such as segregation by ethnical, beliefs, religion, racial, etc. In this case, the school is in a community predominantly African American and the law doesn´t segregate at all. However, if a category is needed, by cistumstance, it would be segregation by racial.

false

Explanation:

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.

it is a better alternative