Why pottassium is called trrafic policeman of plants explain briefly.

Potassium is called as chemical policeman because it regulates the physiological processes, maintains the ion homeostasis and regulates the osmotic balance of the plant cells.

Explanation:

brief enough

african americans demonstrated their newly found freedom by relocating often in search of relatives whom they had been separated from during slavery. others established schools to educate freed people and they built institutions such as churches and political organizations to advocate for their rights.