Answer:
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:
A different Enlightenment thought.
Explanation:
The Declaration of Independence features the Enlightenment ideas of a <u><em>social contract</em></u> (power exchange between citizens and the government to ensure a citizens protection), <u><em>popular sovereignty</em></u> (the idea that the government's power comes from the people, so the people have the right to rule the government), and unalienable <u><em>natural rights</em></u> (rights we are all born with. In the Declaration of Independence, these rights are defines as the right to live, pursue of happiness, and be free [liberty]).
Civil rights <span> of African-Americans in the United States in the 1960s.</span>
The second one is the correct one
