No. Silicon dioxide is, literally, sand, like beach sand. It is used to prevent caking of powdery products, and is not harmful.
phospheric acid
There is not one "most harmful disease". In fact, there are lists of "harmful" diseases that can kill anyone at any time (example: kidney disease, heart disease), or can take years to kill.
they carry disease that can be harmful
No - Hydrochloric acid must not be used as a cooking ingredient as it is very harmful and corrosive
the most harmful is carbon dioxide.
1. Carbon dioxide is a gas, non-toxic, with the formula CO2. 2. Carbon dioxide is not harmful for drivers. But: - carbon dioxide is harmful for the life on the earth because is a green house gas - carbon dioxide is not a breathing gas and did not maintain animal life - carbon dioxide is useful for plants, important in photosynthesis
yes
Because it might contain certain harmful gases such as Carbon dioxide, methane, and so on which are harmful to lungs.
A contagion is either a disease spread by contact, the spread of such a disease, or the spread of anything harmful, as if it were a disease.
Ignorance
It kills you...
It is not harmful to animals but it can be harmful/fatal to children