Why should drinking water be pure and clean

drinking water should be pure and clean becasue if the water isnt çlean it might have bacteria and germs that are harmful to your body. The bacteria could mess up your bodily functions and may even result in death

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.

yes

it is because 3 because the citizen the northern democratic party watned the warning on red to blue because it is purple. lol