It has negative outcomes from long term use.
B. Career pathway I think if not then I apologize:) and
The answer here is B they are each made of matter. some are compounds, and some are elements they all contain Atoms this is because Silver and Oxygen are elements while Carbon Dioxide and Water are compounds. Although you do not have the choices down, I have come across this question before.
Encoding , decoding, feedback and medium of transmission
mark branliest if i helped out!:))