The observation that led Gettler to hypothesize that cyanide poisoning was the cause of death was how the bodies of Fremont and Annie Jackson ended up. Their skin had reddened and their lips had gone blue due to not getting enough oxygen which are the results of cyanide poisoning.

Cyandie turns a deep blue when certain chemicals are added

Explanation:

Cyanide seizes every form of oxygen from the body, leading to the death of cells in the human body, as cells need oxygen to be functional, liquid forms of cyanide can be absorbed through the skin, and when they do, they interfere with cellular respiration, making it difficult for the body tissues to use oxygen. Cyanide is more harmful to the heart and brain, which are major users of oxygen in body organs.

the economic difference between the three colonial regions. shipbuilding, whaling, fishing, and trapping where also main factors to the economy. the southern regional colonies economy was based on sugarcane, rice, cotton, tobacco, and indigo.

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