The person you are sharing them with may be sick or have something and by sharing those they could pass it onto you
Answer:
Smog.
Explanation:
Hello there!
Here's the definition you were looking for:
smog
<em>noun</em>
1. fog or haze combined with smoke and other atmospheric pollutants.
"exhaust emissions are mainly responsible for the smog"
:)
Effector - interprets all data and any necessary action
senor - causes an action......
control center - monitors the body's condition