It's either A or B, I'm leaning towards A.
Uhh i've never heard of it but it sounds like the answer would be A or C
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:
<span>Prayers have been offered in those places since colonial times. Hope this helps!!!!</span>
Answer: To Answer your question
Explanation: the Pearl River Delta would be where the base for the manufacturing of the IT Industry.