5: false, sure it’s contagious by specific touch but it’s not an autoimmune disorder, it’s a disease
7: influenza is passed by airborne like from coughing, most of the other choices are from lifestyles and genetics.
6: viruses, viruses can cause diseases and they can multiply themselves
3: hereditary, because of genetic conditions
I’m not sure if 1 and 2 though
2: chronic disease develop over time, while acute diseases, acute infections is a rapid development of a disease, please take this as hint since I’m not sure
1: I do not understand
I hope I helped though!