13,12,14 maybe? it depends
Answer:
In my knowledge
Option D. a local health ordinance
Answer:
TRUE
Explanation:
Yes, laughing gas can kill if used for recreational purposes without properly safety in place. All of the things listed in question can happen along with hypoxia (low O2 levels) if person does not breathe in O2 in regular intervals.
I’m doing good. Thanks for asking
In recent years, fluoride is an essential nutrient necessary for producing healthy teeth where water and toothpaste companies fluoridate the toothpaste and public water supplies.
However, studies shows that fluoride is more poisonous than lead for in hypersensitive individuals, it can cause skin eruptions such as atopic dermatitis, eczema and urticaria. According to National Cancer Institute, fluoridation of water and toothpaste has been linked to significant increase in genetic damage that lead to bone cancer called osteosarcoma.
Moreover, there are also reports that shows artificially fluoridated water, can inhibit enzyme systems, damage the immune system, contribute to calcification of soft tissues, worsen arthritis and cause dental fluorosis.
In the end, further studies and research must be conducted to fully address the truth about fluoride and fluoridation.