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Formaldehyde can be added as a preservative to food, but it can also be produced as the result of cooking and smoking. Formaldehyde also occurs naturally in the environment. Humans and most other living organisms make small amounts as part of normal metabolic processes. Formaldehyde is also a byproduct of combustion. When burning natural gas, kerosene, gasoline, wood, or tobacco, formaldehyde is produced. Automobile exhaust is a common source of formaldehyde in our environment. Tobacco smoking in the home is another source of the chemical in the indoor environment.
Explanation:
Answer:
The major causes of World War II were numerous. They include the impact of the Treaty of Versailles following WWI, the worldwide economic depression, failure of appeasement, the rise of militarism in Germany and Japan, and the failure of the League of Nations.
<span>Young white men served and fought. Some free Africans served in army. Women raised money, made clothes, served as nurses, messengers, and spies.
I hope this helps.</span>
Dropped the Atomic Bomb on Hiroshima and Nagasaki!
The Soviet Union was bringing missiles to Cuba which America wanted to stop because Cuba is very close to Florida. America put a lot of ships around Cuba to stop the Soviet Union from bringing them the missiles. The Soviet and American ships met and had a standoff. If one of them would have fired, it would have started a war. To avoid this, the Soviet Union agreed to remove the missiles from Cuba if the United States removed their missiles from Europe. During this time the military was at the highest level of defcom as possible. It has never been as alert since then. The highest it has been since then was on 9/11.