To prevent soil erosion on hillsides. a. windbreaks b. terraces c. fences d. tractors

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.

a) they had recently endured the tyranny of the british king, parliament, and its royal

answer; generalizability;