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:
I will assume you are talking about the 3, 4, 5 on the page. 3. The ancient Egyptians grew things in two seasons and irrigated their fields by either using shadoofs or digging huge basins or pits. If they were using the shadoofs though, they had to be near a river. 4. It was important for the farmers in Egypt to figure out a way to solve the problem of water scarcity because that way they will have crops to eat, sell, and trade. If that happens, the civilization will weaken. 5. If one year, the Nile river did not flood or flooded too much, the result would be that the farmers wouldn't be able to produce crops. If they cannot produce crops, then they will not be able to eat, sell, or trade.
Explanation:
<span>Now that we have looked at how and why the Industrial Revolution occurred, it’s time to consider its effects on people. We learned that industrial production increased tremendously, bringing wealth and power to Great Britain throughout the 19th century. But we have yet to explore the effects of industrialization on society, on the daily living and the working conditions of common people. What was life like for the average industrial worker? Was living in a new industrial city and working in a factory an improvement over life in the countryside? Did the new factory life change for the better the roles of family members, including women and children? Were people healthier? In general, did the Industrial Revolution improve life for most people? To answer these questions, we’ll look at various primary source accounts to gather evidence from the people that actually lived through this time period.</span>
The superhero comics is the first comic books that aimed at adults bu later aimed at children and young adults, beginning with Superman.
<h3>What was the
superhero comics?</h3>
The comics is about a fictional hero whose extraordinary powers are often displayed in a fight against crime and assorted villains who in turn often display superhuman abilities.
Hence, the superhero comics is the first comic books that aimed at adults bu later aimed at children and young adults, beginning with Superman.
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